Answer:
42% decrease
Step-by-step explanation:
To get the percent increase or decrease, subtract 450 by 261 to get 189. Then divide this by 450 to get 0.42. Multiply this by 100 to get a 42 percent decrease.
Is x = 3 a solution to the equation below? (substitute and check if they equal each other)
2(2x+1)+x=8x+2-3x
need step by step explanation
Answer:
yes
Step-by-step explanation:
2(2(3)+1) + 3= 8(3)+2-3(3)
14+3=24+2-9
17=17
What is RU?
A.20
B.30
C.12
D.15
Answer:
a
Step-by-step explanation:
The segment RT is a perpendicular bisector and means Δ RSU is isosceles, then the 2 legs are congruent, that is
RS = RU , substitute values
8x = 6x + 5 ( subtract 6x from both sides )
2x = 5 ( divide both sides by 2 )
x = 2.5
Thus
RU = 6x + 5 = 6(2.5) + 5 = 15 + 5 = 20 → a
Karen and James both had 30 stocking stuffer items on their shopping list. After black Friday shopping Karen had finished 35% of her shopping After black Friday shopping James had finished 60% of his shopping HOW MANY MORE items has James purchased than Karen?
Answer: 7.5 items
Step-by-step explanation:
Both Karen and James had 30 stocking items.
Karen bought 35% of her items;
= 35% * 30
= 10.5 items
James has bought 60%;
= 60% * 30
= 18 items
= 18 - 10.5
= 7.5 items
help me with my math for brainiest:)
If this is this then what is what
Answer:I feel like I should understand this
Step-by-step explanation:
Solve for y
*show your work *
6y - 3x = 12
1/2 x + 1/4 y = 2
Step-by-step explanation:
if negative sign is there we must add and if positive sign is there subtraction should be written there.....
can anyone answer this?
What is the approximate circumference of the circle shown below
Answer: A) 46.5 cm
Step-by-step explanation:
Circumference = 2 π r or Circumference = π d
In this case, they give us the diameter = 14.8 cm. Therefore the radius = 14.8/2 = 7.4 cm.
π ≈ 3.14.
We can use either equation above, but because the diameter was given, we will use c = πd for simplicity.
C = π d
= (3.14)(14.8)
= 46.47 cm, which rounds to 46.5 cm
Thomas can process a pile of paperwork in 4 hours less time than Frank. Together they can process the pile in 2.1 hours. How long would it take Frank to do the job alone?
Answer:
F = 7 hours
Step-by-step explanation:
Let the time taken by Frank to work alone be F.
Translating the word problem into an algebraic equation;
Thomas alone takes (F - 4) hours.
Combine time = 2.1 hours
Their individual work rate expressed in piles per hour are;
Frank = 1/F
Thomas = 1/(F - 4)
Combined rate = 1/F + 1/(F - 4)
Simplifying the equation, we have;
Combined rate = (F - 4 + F)/F(F - 4)
Combined rate = (2F - 4)/F(F - 4)
Combined rate = (2F - 4)/(F²- 4F)
Now to find the time taken when they work together is;
(2F - 4)/(F²- 4F) = 1/2.1
Cross-multiplying, we have;
2.1*(2F - 4) = F² - 4F
4.2F - 8.4 = F² - 4F
Rearranging the equation, we have;
F² - 4.2F - 4F + 8.4 = 0
F² - 8.2F + 8.4 = 0
Solving the quadratic equation by factorization;
Factors = -7 and -1.2
F² - 7F - 1.2F + 8.4 = 0
F(F - 7) - 1.2(F - 7) = 0
(F - 7)(F - 1.2) = 0
Therefore, F = 7 or 1.2 hours
The time taken by Frank alone would be 7 hours.
X ≤ 2 x ≥ 2 -4 < x ≤ -2 -4 < , x, ≤ -2 -4 ≤ x ≤ -2 What is the domain of the function?
Answer:
really hard and strong but am interested
Gary's pay is $15 per hour. He receives a 6% pay raise.
The question is incomplete, the complete question is;
Gary's pay is $15 per hour. He receives a 6% pay raise.
Which method can Gary use to correctly calculate his new hourly pay rate?
Choose Yes or No for each method.
Answer:
Multiply 15 by 0.06 and add the result to 15 is the correct method
Step-by-step explanation:
Now when you are told to obtain the percentage, it simply means to multiply the given percentage by the number.
Here is what i mean;
6% of 15 simply means
6/100 * 15
Or
0.06 * 15 = 0.9
Since his basic pay of $15 was increased by this percentage, we have to add $0.9 so we have;
15 + 0.9 = $ 15.9
Write the expanded form
21.061
Answer:
(2 x 10) + (1 x 1) + (0 x 0.1) + (6 x 0.01) + (1 x 0.001).
Which ordered pair is a solution to the system of inequalities?
y>−2 and x+y≤4
Answer:-2,-3
Step-by-step explanation:
Plz help my teacher isn’t emailing my back
Answer:
ugh'
Step-by-step explanation:
12 and 4 i could be wrong sozStep-by-step explanation:
Use a graphing calculator to graph the function below. What is the
minimum value of the function?
y= 22 + 8x + 7
-13
-9
-6
-3
Answer:
-3
Step-by-step explanation:
helpppp i need the answer fast it’s timed
The measures of the angles of a triangle are shown in the figure below. Solve for x.
Answer:
x = 25
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Geometry
All angles in a triangle add up to 180°Step-by-step explanation:
Step 1: Set Up Equation
29° + (4x + 9)° + (x + 17)° = 180°
Step 2: Solve for x
Combine like terms: 5x + 55 = 180Isolate x term: 5x = 125Isolate x: x = 25write an equation in slope intercept form given slope and point for following (9,-4) slope 2/3 please helpppp
Answer:
y=2/3x -10
Step-by-step explanation:
y= m x + b
m=slope
slope = 2/3
b= y-intercept
plot point (9,-4) and count down two, left three, until reach y axis.
7y+65.7=2 true or false(don't answer that I just don't want this taken down(unless you do actually have the answer) is anyone in the middle of school coming up with random math problems that you know are incorrect but still ask your teacher if they are right anyway? cause same (20 POINTS IF YOU ANSWER AND BRAINLIEST IF YOU ANSWER MY "QUESTION")
It's false and same lol
A pound of apple costs $2.50. Represent the cost of n pounds.
Answer:
2.50n
Step-by-step explanation:
If im reading this right you're trying to represent the number of n pounds, so 2.50 * n
say you had 3 pounds:
2.50 (3) = 7.50
WHATS THE SLOPE BETWEEN THE POINTS (-2,8) AND (4,20)
Answer:
m = 12 / 6 = 2 / 1 = 2
Step-by-step explanation:
*
4/3*3.14*2.6*2.6*2.6
Answer:
73.58
Step-by-step explanation: This is just a guess so I may be wrong. So when I put this into the calculator, it is showing a big number: 73.58485333 so what I did was round it to the nearest hundredths which is 73.58 so hope this helps somebody :)
plss plss help asap!!!
Answer:
[tex]f(x) = - 2x + 7 \\ f( - 5) = - 2( - 5) + 7 \\ f( - 5) = + 17[/tex]
Find cot 0 if tan 0 = 2
Answer:
1/2
Step-by-step explanation:
cot0=1/tan0
plug in tan0=2
cot0=1/2
HELPPPPPPP PLEASE I HAVE TO SUBMIT IN 20 MINS!!!!!!
GIVING BRAINLIEST OUT FOR WHOEVER IS CORRECT AND FAST!
Look closely at the screenshot.
Answer:
Yes the standard form is 3 * 10^7+73
3*10^7+7*10+1*3
= 3 * 10^7+73
Step-by-step explanation:
hope this helps,
Please give brainliest if you like my answer,
Have a great day
Answer:
14x10∧8
Step-by-step explanation:
Isaac is purchasing two pairs of shoes—one pair for $37.00 and the second pair for $42.00. The state sales tax applied to Isaac’s bill is 7%. How much is Isaac’s total bill? If Isaac uses a coupon entitling him to a 25% discount off the purchase price before tax, how much will his bill be? Assume that a 7% sales tax is applied to the discounted price. Using words, explain how you found the discounted price.
What place value docs the 6 have in 764,328
Answer:
It's in the ten thousands place
Step-by-step explanation:
700,000
60,000
4,000
300
20
8
764,328
Hope this helps. Have a nice day
Answer:
6 is in the ten thousandth place
How can I find the answer for number 1 and 4 with explanation?
Answer:
Concept: Sequences & Series
The hint here is to try to find the common factor, you asked us to solve 1 so see the solution below.
1,-3,9, -27 : We see a common base of 3 hence we can find that the series representation is [tex]( - 3) ^{n-1} [/tex]Next we can find the next 3 terms by just plugging in the values
We want the 6th, 7th, and 8th term
So we plug 6 in for n and 7 in for n and 8 in for n
So we get the 6th term=-243
The 7th term= 729
The 8th term= -2187
Answer:
Step-by-step explanation:
1) 1 , -3 , 9 , -27 , 81 ,...........
It is Geometric sequence
ratio = 2 term ÷ first term = -3 ÷ 1 = -3
1st term = 1
2nd term = 1 * -3 = -3
3rd term = -3 *(-3) = 9
4th term = 9 *(-3) = - 27
6th term = 81 *(-3) = -243
7th term = -243 *(-3) = 729
8th term = 729 *(-3) = -2187
Next 3 terms: - 243 , 729 , - 2187,....
4)
[tex]\frac{1}{2}, \frac{1}{2} , \frac{3}{8} , \frac{1}{4} ,\frac{5}{32},.....\\\\\\Rule = \frac{n}{2^{n}}\\Term1 = \frac{1}{2^{1}}=\frac{1}{2}\\\\Term2 = \frac{2}{2^{2}}=\frac{2}{4}=\frac{1}{2}\\\\Term3 = \frac{3}{2^{3}}=\frac{3}{8}\\\\Term4 = \frac{4}{2^{4}}=\frac{4}{16}=\frac{1}{4}\\\\Temr5 = \frac{5}{2^{5}}=\frac{5}{32}\\\\Term6 = \frac{6}{2^{6}} = \frac{6}{64} = \frac{3}{32}\\\\Term7 = \frac{7}{2^{7}}=\frac{7}{128}\\\\Term8 =\frac{8}{2^{8}} = \frac{8}{256}=\frac{1}{32}\\\\[/tex]
Next 3 terms are : 3/32 , 7/128 , 1/32
Write the expanded form of the following:
a) 21.061
b) 0.358
c) 506.0201
d)126.00
Answer:
a) 21.061
20+1+0.0+0.06+0.001
b)0.358
0+0.3+0.05+0.008
c)506.0201
500+0+6+0.0+0.02+0.000+0.0001
d)126.00
100+20+6
Happy New year ✨