Mr. Wells tells his class of 24 that when they have completed the assignment, they may play online math games. At the end of class, 40% of the class is playing online math games. Approximately how many students still need to complete their assignment


Help plz

Answers

Answer 1

Answer:

Approximately 14-15

Step-by-step explanation:

This is because 60 percent are not playing games, meaning they haven’t completed their assignment. You then just find 60 percent of 24(the total). That is 14.4 so you round it because you can’t have half of a person, it needs to be a whole number.

Answer 2
The answer simplified is 10 but the actual answer is 9.6 so I really do not know but there

Related Questions

Identify the slope and y-intercept of the graph
below, then write the equation
(4,4) (0,-1)


There is a graph I have to label

Answers

The answer to your question is just use Desmos
Answer: y = 5/4x - 1 , Slope = 5/4 , y-intercept = -1


STEPS:

Use y1-y2/x1-x2 to find the slope

-1-4/0-4

= -5/-4

= 5/4 because negative divided by negative is positive


Next, use y-y1=m(x-x1) to find y-intercept


y-4=5/4(x-4)

y-4=5/4x-5

y=5/4x-1

So the y-intercept is -1

Alright I really need help and this question is going to give you alot of ponits so let do it also its due in 20min!!!!!!! Ok so Five cats each ate 1/4 cup of canned food and 1/4 cup of dry food. How much food did they eat altogether? Please don't spam me and get the answer right because as soon as I get a reply then i will put that answer on the page

Answers

All together they ate 2 2/4 food you get this answer by multiplying 1/4 by 5 and you get 1.25 and multiply that by 2 to get 2.5 or 2 2/4 food ate in total

Help
Pleaseeee xxxxx

Answers

Answer:

90 for both

Step-by-step explanation:

90 this is because all right angle equal 90 degrees and, triangles all equal 180 in total so if u add all the angle together it equal 180. I hope this helps.

Answer:

a = 3.46 , c = 9.9

Step-by-step explanation:

These are the following identities:

[tex]sinx=\frac{perpendicular}{hypotenuse} \\\\cosx=\frac{base}{hypotenuse}\\\\tanx=\frac{perpendicular}{base}\\[/tex]

Easier way to learn this is

Some people have curly brown hair till painted black

Sinx   = per/hyp      cosx  = base/hyp  tanx = per/base

So if use the angle 60° we can see that the opposite side(perpendicular) to the angle is 6 and the base side is a so we need the identity which uses the opposite side(perpendicular side) and the base side and not the hypotenuse so that is tan x so,

[tex]tan\ 60=\frac{6}{a} \\\\1.732=\frac{6}{a}\\\\1.732a=6\\a=\frac{6}{1.732}\\\\a=3.46\\[/tex]

So a = 3.46

Now to calculate c:

If we take the angle 45° and see the opposite side(perpendicular side) is 7 and the hypotenuse is c so need the identity which uses the opposite side(perpendicular side) and the hypotenuse and not the base, which is sin x so,

[tex]sin 45=\frac{7}{c}\\\\0.707=\frac{7}{c}\\\\0.707c=7\\\\c=\frac{7}{0.707}\\\\c =9.9\\[/tex]

so c = 9.9

A farmer plans to fence a rectangular garden next to a river. There will be no fence along the river side. Draw a picture of this situation. The pasture will contain 405,000 square meters. Find the dimensions of the garden that will require the least amount of fencing.

Answers

Answer:

x  =  450 m

y =  900 m

P (min)  = 1800 m

Step-by-step explanation:

Let´s call   "x"  and  "y" de sides of the rectangular garden, y is the side parallel to the river ( that is it will be fenced only one )

Then:

2*x + y = P        ( perimeter of the area)

And   x * y  = 405000 m²

y = 405000/ x

And P as a function of x is:

P(x) = 2*x +  405000/x

Tacking derivatives relative to x on both sides of the equation.

P´(x)  = 2  - 405000/x²

P´(x) =  0      2*x²  - 405000 = 0

x²  = 202500

x = 450 m

And y =  405000 / 450

y = 900 m

And

P(min) = 2*450 + 900

P(min) = 1800 m

We know P is minimm at x =450 snce the second derivative of P

P´´(x) = 405000*2*x / x⁴   is always positive

may run 6 miles in 54 minutes how long will it take her to run 10 miles ​

Answers

Answer:

90 minutes or an hour and a half

Step-by-step explanation:

You need to find out how many minutes it takes her to run one mile, to do that you devide 54 by 6 and you get 9 minutes. Then you multiply the number of minutes per mile, 9, by 10 and you get 90 minutes.

45% of 45 is (Explain ur method)​

Answers

Answer: 20.25

Step-by-step explanation: All you need to do is multiply 45 by 45%. 45% can be represented by 0.45, 45/100, or just 45%. You answer should be 20.25. Hope this helps!

45 percent of 45 is 20.25.

To calculate 45% of 45, we can multiply 45 by the decimal representation of 45%.

45% can be written as 0.45 (since percent means "per hundred" or "out of 100").

45 × 0.45 = 20.25

Therefore, 45% of 45 is 20.25.

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Add. Write your answer in the simplest form.

5 1/5 + 4 3/5 PLZZZ HURRY

10 1/5
9 2/5
10 4/5
9 4/5

Answers

Answer:

9 4/5

Step-by-step explanation:

Please help .......You are guaranteed a minimum salary of $2000 per month PLUS 5.75% 5 points
of total sales. What is your gross pay for a month in which total sales are
$80,000 ?*

1.2000
2.$6600
3.$2460
4.$48,000
5.$4600

Answers

Answer:

6600

Step-by-step explanation:

0.0575*80000=4600

4600+minimum salary which is 2000=6600

(can I get brainliest please)

38) It is recommended that there be at least 13.8 square feet of ground space in a
garden for every newly planted shrub. A garden is 32.2' by 18'. Find the
maximum number of shrubs the garden
can accommodate.
a) 3 shrubs
b) 13 shrubs
c) 42 shrubs
d) 193 shrubs

Answers

Answer:

c) 42 shrubs

Step-by-step explanation:

Calculation to Find the maximum number of shrubs the garden can accommodate

First step is to calculate the Area of Garden

Area of Garden = (32.2 ft)*(18 ft)

Area of Garden= 579.6ft²

Now let calculate the maximum number of shrubs the garden can accommodate using this formula

Maximum number shrubs=(579.6 ft²)/(13.8 ft² per shrub)

Maximum number shrubs = 42 shrubs

Therefore the maximum number of shrubs the garden can accommodate will be 42 shrubs

Select all the numbers that have an even number of factors.
8,9,15,16,25

Answers

8,9,25 i think hopefully this is right

The numbers having an even number of factors are 8 and 15.

What are factors?

A factor is a number that completely divides another number. To put it another way, if adding two whole numbers results in a product, then the numbers we are adding are factors of the product because the product is divisible by them.

The given numbers are 8, 9, 15, 16, and 25.

Factors of 8 are 1, 2, 4, and 8.

Factors of 9 are 1, 3, 9.

Factors of 15 are 1, 3, 5, 15.

Factors of 16are 1, 2, 4, 8, 16.

Factors of 15 are 1, 5, 25.

Of which 1 and the number itself are improper factors.

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Could someone help with this math problem I will cashapp you !

Answers

Answer: 203.65

Step-by-step explanation:

subtract those checks from his starting balance

6.
It is given that at x = 1, the function x^4 - 62x^2 + ax + 9 attains its
maximum value on the interval [0, 2]. Find the value of a.​

Answers

Answer:

The value of a is 120.

Step-by-step explanation:

Given function;

f(x) = x⁴ - 62x² + ax + 9

find the derivative of the function;

f'(x) = 4x³ - 124x + a

The function (f) attains its maximum value on the interval [0, 2], at x = 1.

f'(1) = 0

0 = 4(1)³ - 124(1) + a

0 = 4 - 124 + a

0 = -120 + a

120 = a

Thus, the value of a is 120.

- f:R → R
f(x + 7) = 3x - 6
g(2x + 1) = x2-1
= (f-1og)(5) = ?

Answers

Answer:

[tex]f^{-1}\,\circ \,g(5) = 10[/tex]

Step-by-step explanation:

Let [tex]f(x+7) = 3\cdot x -6[/tex] and [tex]g(2\cdot x +1) = x^{2}-1[/tex], we proceed to derive [tex]f(x)[/tex] and [tex]g(x)[/tex] by algebraic means:

(i)  [tex]f(x+7) = 3\cdot x -6[/tex]

1) [tex]f(x+7) = 3\cdot x -6[/tex] Given

2) [tex]f(x+7) = 3\cdot (x+0) - 6[/tex] Modulative property

3) [tex]f(x+7) = 3\cdot [(x+7) +(-7)]-6[/tex] Existence of additive inverse/Associative property

4) [tex]f(x+7) = 3\cdot (x+7) +3\cdot (-7)-6[/tex] Distributive property

5) [tex]f(x+7) = 3\cdot (x+7) -21-6[/tex]   [tex]a\cdot (-b) = -a\cdot b[/tex]

6) [tex]f(x+7) = 3\cdot (x+7) -27[/tex] Definition of subtraction

7) [tex]f(x) = 3\cdot x - 27[/tex] Composition of functions/Result

(ii) [tex]g(2\cdot x + 1) = x^{2}-1[/tex]

1) [tex]g(2\cdot x + 1) = x^{2}-1[/tex] Given

2) [tex]g(2\cdot x + 1) = (x\cdot 1)^{2}-1[/tex] Modulative property

3) [tex]g(2\cdot x +1) = [(2\cdot x)\cdot 2^{-1}]^{2}-1[/tex] Existence of additive inverse/Commutative and associative properties

4) [tex]g(2\cdot x +1) = (2\cdot x)^{2}\cdot 2^{-2}-1[/tex]   [tex]a^{c}\cdot b^{c}[/tex]/[tex](a^{b})^{c} = a^{b\cdot c}[/tex]

5) [tex]g(2\cdot x + 1) = \frac{(2\cdot x)^{2}}{4}-1[/tex] Definitions of division and power

6) [tex]g(2\cdot x + 1) = \frac{(2\cdot x + 0)^{2}}{4} -1[/tex] Modulative property

7) [tex]g(2\cdot x +1) = \frac{[(2\cdot x + 1)+(-1)]^{2}}{4} -1[/tex] Existence of additive inverse/Associative property

8) [tex]g(2\cdot x + 1) = \frac{(2\cdot x + 1)^{2}+2\cdot (2\cdot x + 1)\cdot (-1)+(-1)^{2}}{4} -1[/tex] Perfect square trinomial

9) [tex]g(2\cdot x + 1) = \frac{(2\cdot x + 1)^{2}}{4}+\frac{[2\cdot (-1)]\cdot (2\cdot x + 1)}{4} +\frac{(-1)^{2}}{4}-1[/tex] Addition of homogeneous fractions.

10) [tex]g(x) = \frac{x^{2}}{4}-\frac{2\cdot x}{4} + \frac{1}{4}-1[/tex] Composition of functions/[tex]a\cdot (-b) = -a\cdot b[/tex]

11) [tex]g(x) = \frac{x^{2}}{4}-\frac{x}{2}-\frac{3}{4}[/tex] Definitions of division and subtraction/Result

Now we find the inverse of [tex]f(x)[/tex]:

1) [tex]f = 3\cdot x - 27[/tex] Given

2) [tex]f + 27 = (3\cdot x - 27)+27[/tex] Compatibility with addition

3) [tex]f+ 27 = 3\cdot x +[27+(-27)][/tex] Definition of substraction/Commutative and associative properties

4) [tex]f+27 = 3\cdot x[/tex] Existence of additive inverse/Modulative property

5) [tex](f+27) \cdot 3^{-1} = (3\cdot 3^{-1})\cdot x[/tex] Compatibility with multiplication/Commutative and associative properties

6) [tex](f+27)\cdot 3^{-1} = x[/tex] Existence of multiplicative inverse/Modulative property

7) [tex]f^{-1} (x) = \frac{x+27}{3}[/tex] Symmetrical property/Notation/Result

Finally, we proceed to calculate [tex]f^{-1}\,\circ \, g (5)[/tex]:

1) [tex]f^{-1} (x) = \frac{x+27}{3}[/tex], [tex]g(x) = \frac{x^{2}}{4}-\frac{x}{2}-\frac{3}{4}[/tex]  Given

2) [tex]f^{-1}\,\circ\, g(x) = \frac{\frac{x^{2}}{4}-\frac{x}{2}-\frac{3}{4}+27}{3}[/tex] Composition of functions

3) [tex]f^{-1}\,\circ \,g(5) = 10[/tex] Result

What is the slope of this line?

Answers

Answer:

Slope = ½

Step-by-step explanation:

Find the slope using two points on the line, (-4, 0) and (0, 2):

[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{2 - 0}{0 - (-4)} = \frac{2}{4} = \frac{1}{2} [/tex]

Slope (m) = ½

A ladder that has a length of 13 m leans against a wall with the base of the ladder 5 m away from the bottom of the wall. Use this information to find how high above the ground the ladder meets the wall

Answers

Answer:

did you find the answer ??

The required height of the wall where the ladder meets the wall is 12 m.

Given that,
A ladder that has a length of 13 m leans against a wall with the base of the ladder 5 m away from the bottom of the wall. Use this information to find how high above the ground the ladder meets the wall is to be determined.

What are Pythagorean triplets?  

In a right-angled triangle, its side, such as hypotenuse, perpendicular and base is Pythagorean triplets.

Here,
Let the height be h,
Applying Pythagoras' theorem,
h = √[13²-5²]
h = √169-25
h = √144
h = 12

Thus, the required height of the wall where the ladder meets the wall is 12 m.

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PLZ HELP WILL GIVE BRAINLEST

Answers

Answer:

it's the fourth one i did that assignment aswell

Suppose that the grades of Business Mathematics and Statistic module is modeled well
by a normal probability distribution with mean (212) and standard deviation (122). Let
X be the random variable representing this distribution. Find two symmetric values "a"
and "b" such that Probability [ a

Answers

Answer:

a = -2.57 and b = 2.57

Step-by-step explanation:

Explanation:

Given mean of the Population = 212

Standard deviation of the Population = 122

Let  X be the random variable of the Normal distribution

[tex]Z = \frac{x-mean}{S.D}[/tex]

Given P( a ≤ z ≤b) = 0.99

  put a=-b

         P( -b ≤ z ≤b) = 0.99

   ⇒     |A( b) - A( -b)| =0.99

    ⇒     | A( b) + A( b)| =0.99  

   ⇒       2 |A (b)| = 0.99

     ⇒     | A(b)| = 0.495

From normal table find value in areas

          b = 2.57 ( see in  normal table)

         Given a =-b

                   a = - 2.57

two numbers have a sum of 15 and a product of 26 what are they

Answers

The numbers are 13 and 2


which add to 15 and multiply to 26

Need help 15 points

Answers

Answer:

correct answer is d....

Answer:

d (22)^40 +(-7)^40 its very easy

Ratio 2:3 if Moses ran 8 laps and how many did Louis run

Answers

Answer:

8:12

Step-by-step explanation:

8/2=4

4 times 3 = 12

A recipe calls for 1 part coconut to 4 parts sugar. How much sugar will you need if you use 20 grams of coconut?

Answers

Answer:

80

Step-by-step explanation:

1:4 = 20:80

We are multiplying 20 by 1 to get 20 grams of coconuts. Also, we are multiplying 4 by 20 to get 80 grams of sugar. Therefore, you will need 80 grams of sugar if you use 20 grams of coconut. By the way, I suggest you review ratios if you are having difficulties with it.

Aboard 22 cm long is cut into two pieces. One piece is 4 cm longer than twice the length of the other piece. Find the length of each piece

Answers

Answer:

Length of one piece = 6 cm

Length of second piece = 16 cm

Step-by-step explanation:

Total Length of board = 22 cm

The board is divided into 2 pieces.

Let length of one piece = l

Length of second piece = 2l + 4

We need to find length of both pieces.

We can write the equation:

Total length = Length of one piece + Length od second piece

Putting values and finding length

[tex]22 = l+(2l+4)\\22=l+2l+4\\22=3l+4\\3l=22-4\\3l=18\\l=\frac{18}{3}\\l=6[/tex]

So, we get l= 6

Length of one piece = l =6 cm

Length of second piece = 2l + 4 = 2(6)+4 = 12+4 = 16 cm

Therefore,

Length of one piece = 6 cm

Length of second piece = 16 cm

A 12 foot tall building casts a 9 foot long shadow. How long of a shadow will a 5 foot tall woman have?

6.66 feet
6.66 feet

3.75 feet
3.75 feet

2 feet
2 feet

Answers

Answer:

22feet11111111111111dddddd

Answer:

Step-by-step explanation:

It is 3.75

which values for x and y satisfy the following equations
y=x-1 and 2x + y=8

Answers

I would use substitution.

So y=x-1 and 2x+y=8
Substitute y=x-1 in for y
2x+(x-1)=8
Simply
= 3x -1=8
Bring the one to the other side
3x=9
Divide
X=3
Plug x into y=x-1
Y=(3)-1
Y=2
Check with the other equation
2(3)+(2)=8
6+2 =8

X=3
Y=2

You can also do elimination.
Y=x-1 and 2x+y=8
Subtract c from the first equation
-x+y=-1 and 2x+y=8
Those are your equations.

-1(-x+y)=-1
= x-y=1
2x+y=8
The y’s would cancel and you would add down so this is your new equation
3x=9
X=3
You then plug in the 3 for x
And find y
Y=(3)-1
Y=2

knowing that concentration of solutions of medications can be expressed as percentage, what percentage is a solution that's 20g of medication per 100 ml solution?

Answers

Answer:

20%

Step-by-step explanation:

The percentage of the concentration can be calculated by dividing the amount of solute by the total amount of the solution. In this case the solute would be the 20g of medication while the total solution amount is 100ml. Therefore, we divide these two values like so...

20 / 100 = 0.20

This is the percentage in decimal form, we can now multiply it by 100 to get the percentage value (which in this scenario is simply reversing the previous division)

0.20 * 100 = 20%

determine whether (8,5 a solution of the equation y=15x-14)

Answers

Answer:

no, It isnt

Step-by-step explanation:

The midpoint of AB is M (-1, -5). If the coordinates of A are (3, -8), what are the coordinates of B?

Answers

Answer:

coordinates of point B are (-5, -2)

Step-by-step explanation:

Recall that the midpoint of the segment that joins (x1, y1) with (x2, y2) is given by:

( (x1 + x2)/2 , (y1+y2)/2)

Therefore, given the information about the midpoint being (-1, -5) and A being (3, -8) we get:

For the x value (x2) of point B:

-1 = (3 + x2) / 2  then -2 = 3 + x2 and finally solving for x2;  x2 = -2 - 3 = -5

For the y value (y2) of point B:

- 5 = (-8 + y2) / 2  then -10 = - 8 + y2 and finally y2 = -10 + 8 = - 2

Then point B has the coordinates: (-5, -2)

Round 6,532 to the nearest thousands

Answers

Answer:

7,000

Step-by-step explanation:

Answer:

7000

Step-by-step explanation:

the hundreds is 5 so the 6 is turned into a 7 and the rest become 0, 5 or more let it soar, 4 or less let it rest or something

The table shows the amounts of onions and tomatoes in different-sized batches of a salsa recipe.

Elena notices that if she takes the number in the tomatoes column and divides it by the corresponding number in the onions column, she always gets the same result.

What is the meaning of the number that Elena has calculated?

onions (ounces) tomatoes (ounces)
2 16
4 32
6 48

Answers

The meaning of the number that Elena has calculated is; the proportion of tomatoes to onions used in making the salsa recipe

How to calculate the unit proportion rate?

The unit rate is defined as a ratio that represents the rate of something per unit. For example we can say that A car is driving at a speed of 50 kilometers per hour. Thus, the unit rate is 50 kilometers per hour.

Now, we are given a table showing the amounts of onions and tomatoes in different-sized batches of a salsa recipe.

For 2 ounces of onions used, 16 tomatoes are used

For 4 ounces of onions used, 32 tomatoes are used

For 6 ounces of onions used, 48 tomatoes are used

Now, we are told that she takes the number in the tomatoes column and divides it by the corresponding number in the onions column. This would represent the ratio of tomatoes to onions that is used in making a salsa recipe.

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Victoria learns 2 songs each week in piano lessons.

Which graph shows the number of songs Victoria will learn if she takes lessons for x weeks?

Answers

Answer:

the first one

Step-by-step explanation:

she learns the first 2 songs on the first week so the dot has to be lined up with 1 on the x axis and 2 on the y axis. then from there it goes up by 1 on the x axis and 2 on the y axis.

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