Answer:
Flip flops = 5
Sneakers = 2
Step-by-step explanation:
Let
x = flip flops
y = sneakers
x + y = 7 (1)
15x + 28y = 131 (2)
From (1)
x = 7 -y
Substitute x = 7 - y into (2)
15x + 28y = 131
15(7 - y) + 28y = 131
105 - 15y + 28y = 131
-15y + 28y = 131 - 105
13y = 26
y = 26/13
= 2
y = 2
Substitute y = 2 into (1)
x + y = 7
x + 2 = 7
x = 7 - 2
= 5
x = 5
Flip flops = 5
Sneakers = 2
Enter the x coordinate of the solution to this system of equations.
- 2x + y = 5
– 5x + y = – 4
Answer:
x = 3
Step-by-step explanation:
Given the 2 equations
- 2x + y = 5 → (1)
- 5x + y = - 4 → (2)
Multiply (2) by - 1 then add to (1) to eliminate y
5x - y = 4 → (3)
Add (1) and (3) term by term to eliminate y
3x = 9 ( divide both sides by 3 )
x = 3
solve the system of linear equations using subsitution. {y=2x-1. {y=x-8
Answer:Linear Algebra Examples ... Linear Algebra. Solve by Substitution y=x+3 , y=2x-1 ... Eliminate the equal sides of each equation and combine. ... Subtract 1 1 from 8 8 . ... The solution to the system of equations can be represented as a point.
Step-by-step explanation:
The total surface are of a cube is 1014 square meters. What is the length of its side?
Attendance at baseball games
Evaluate the expression if s = 5 and t = 7.
4s +t
A.19
B.23
C.27
D.33
Answer:
C. 27
Step-by-step explanation:
4s + t
4(5) +7
20 + 7
27
3.) T4.T4
Simply this for me to plz look at the pic
Answer:
t^8
Step-by-step explanation:
t^4 times t^4
exponents you add.
4 + 4 = 8
t^8
PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
n=-3.1
Step-by-step explanation:
2n+3=-3.2
2n=-6.2
n=-3.1
2n+3 =-3.2
2n= -3.2-3
2n= -6.2
n= -3.1
Write an expression to represent the area
of the park as the product of its total
length and width.
HELP PLEASE
Answer:
20(x+15.5)
Step-by-step explanation:
Answer:
20(x + 15.5)
Step-by-step explanation:
The perimeter of the rectangle is 28 units.
What is the value of w?
Answer:
5 units
Step-by-step explanation:
im pretty sure i did the calculations right
i need help with this ?
Step-by-step explanation:
Notice that 2⁰ = 1, 2¹ = 2, 2² = 4, 2³ = 8...
The exponential function is y = 2^x.
Please help this is algebra 1
problem is in the picture
Answer:
0,1,2,3,4,5
Step-by-step explanation:
You can not buy more than 5 books because you'd have a negative amount of money. So 0,1,2,3,4,5 are the possible values for b.
Which of the following is an extraneous solution of StartRoot 4 x + 41 EndRoot = x + 5? x = –8 x = –2 x = 2 x = 8
Answer:
-8
Step-by-step explanation:
when you solve for x you get -8 but when you pkug it back in both sides are not equal, making it extranious
Answer:
A
Step-by-step explanation:
took test
Calculate the marked price of a sweater purchased at Rs. 1075 allowing 14% discount. ( please do proper answer )
Answer: $1225.50
Step-by-step explanation:
Purchase price = $1075
Discount Percent = 14%
Discount = 14% × $1075
= 0.14 × $1075
= $150.50
Marked price = Purchase price + Discount
= $1075 + $150.50
= $1225.50
Can you please list how I do this and what the answer is I need help on it and I’ve been struggling for 20 minutes now
please answer me fast plz
Answer:
find the classmark of each interval
forexample(140+150)/2(150+160)/2do the same up to (190+200)/2
then
draw a graph by using frequently (number of weeks) on y-axis against classmark on x-axis
A general arranges his students to form a perfect square.He finds that in doing so 60 soldiers were left out if total number of soldiers be 8160 find the number of soldiers in each row
Answer:
90
Step-by-step explanation:
Given that :
Number of soldiers = 8160
Number left out = 60
Result of arrangement gives a perfect square ;
Hence, the number of soldiers which makes up the arrangement will be ;
Total number of soldiers - number left out
8160 - 60 = 8100
Hence 8100 soldiers were used to form a perfect square ;
Number of soldiers in a row :
√8100 = 90
Hence, we have 90 soldiers in a row
Multiply: (√2x^3 +√12x)(2√10x^5 + √6x^2)
Answer:
C
Step-by-step explanation:
I just did the Assignment on EDGE2020 and it's 200% correct!
Also, heart and rate if you found this answer helpful!! :) (P.S It makes me feel good to know I helped someone today!!) :)
Can anyone help please!
Ixl geometry
I hope this helps you
IJH~IKL
IJ/IK=JH/KL=IH/IL
2.1/2.1+0.9=2.8/x
2.1/3=2.8/x
x=2.8*3/2.1
x=4
write 3.25 as a mixed number and improper fraction?
Enjal paid Rs 15,255 for smart phone with 10% discount and 13% vat. Find marked price of that smart phone.
Answer:
The marked price of the smart phone is Rs 15,000.
Step-by-step explanation:
We proceed to explain step by step how to determine the marked price of the smart phone:
1) Divide the resulting price by the VAR factor:
[tex]C' = \frac{C''}{1 + \frac{r}{100} }[/tex] (1)
Where:
[tex]C''[/tex] - Resulting price, measured in rupees.
[tex]C'[/tex] - Price of the product after discount, measured in rupees.
[tex]r[/tex] - VAT rate, measured in percentage.
If we know that [tex]C'' = 15,255\,INR[/tex] and [tex]r = 13[/tex], then the price of the product after discount is:
[tex]C' = \frac{15,255\,INR}{1+\frac{13}{100} }[/tex]
[tex]C' = 13,500\,INR[/tex]
2) Divide the price of the product after discount by the discount factor:
[tex]C = \frac{C'}{1-\frac{r'}{100} }[/tex] (2)
Where:
[tex]C[/tex] - Marked price of the product, measured in rupees.
[tex]r'[/tex] - Discount rate, measured in percentage.
If we know that [tex]C' = 13,500\,INR[/tex] and [tex]r' = 10[/tex], then the marked price of the product is:
[tex]C = \frac{13,500\,INR}{1-\frac{10}{100} }[/tex]
[tex]C = 15,000\,INR[/tex]
The marked price of the smart phone is Rs 15,000.
Use the drop-down menus to complete each equation so the statement about its solution is true. I’ll give brainliest :))
Step-by-step explanation:
5 - 4 + 7x + 1 = 7x + 2.
If there are no solutions, then it is of the form 7x + c, where c is any real number besides 2.
If there is 1 solution, then it is of the form mx + c, where m is any real number besides 7 and c is any real number.
If there are infinitely many solutions, then it is of the form 7x + 2.
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
A florist currently makes a profit of $20 on each of her celebration bouquets and sells an average of 30 bouquets every week. She noticed that when she reduces the price such that she earns $1 less in profit from each bouquet, she then sells three more bouquets per week. The relationship between her weekly profit, P(x), after x one-dollar decreases is shown in the graph below.
Use the graph to complete each statement about this situation.
The maximum profit the florist will earn from selling celebration bouquets is $___.
The florist will break-even after___one-dollar decreases.
The interval of the number of one-dollar decreases for which the florist makes a profit from celebration bouquets is (__,__).
Given : A florist currently makes a profit of $20 on each of her celebration bouquets and sells an average of 30 bouquets every week . and graph
To Find : Maximum profit , breakeven point , profit interval
Solution:
The maximum profit the florist will earn from selling celebration bouquets is $ 675
peak of y from Graph
The florist will break-even after Selling 20 one-dollar decreases.
at breakeven
Break even is the point where the profit p(x) becomes 0
The interval of the number of one-dollar decreases for which the florist makes a profit from celebration bouquets is (0 ,20).
after 20 , P(x) is - ve
Answer: EDMENTUM AND PLATO
First Blank: $625
Second Blank: 20
Third Blanks: ( 0, 20 )
Step-by-step explanation:
p l e a s e h e l p m e e e e
Answer:
i believe its c
Step-by-step explanation:
The bids in an online auction are represented by the arithmetic sequence shown below: right on explicit formula to represent the bids as an arithmetic sequence. What is the tenth bid
Answer:
10th bid is 292
Step-by-step explanation:
Here, as we can see, we have an arithmetic sequence and we want to calculate its 10th term
From the question, we can see that the first term a is 193
The common difference is 204-193 = 11
The formula for the nth term of a sequence is;
a + (n-1)d
In this case, n = 10
so we have ;
193 + (10-1)11
= 193 + 99 = 292
A park has a 3m tall tetherball pole, and a 6.8m tall flagpole. The lengths of their shadows are proportional to their heights.
Complete question is;
A park has a 3 meter tall tether ball pole and a 6.8 m tall flagpole. The lengths of their shadows are proportional to their heights.
Which of the following could be the lengths of the shadows?
Choose 2 answers from the options attached.
Answer:
Options B & D
Step-by-step explanation:
From the question, the proportional relationship between the height and shadow length is a direct proportionality. This means that an increase in the height, leads to an increase in the length of shadow and vice versa. Thus, the height to shadow length ratio is a constant.
Now, if we use x and y to denote length of shadow of tether ball pole and length of flagpole receptively, we will have;
3/x = 6.8/y
Let's make y the subject.
y = 6.8x/3
Looking at the options;
Option A: When x = 1.35 m, we have;
y = (6.8 × 1.35)/3 = 3.06 m
For Option B:
When x = 1.8 m,
y= (6.8 × 1.8)/3 = 4.08 m
For Option C:
When x= 3.75 m,
y = (6.8 × 3.75)/3 = 8.5 m
For option D:
When x = 0.6
y = (6.8 × 0.6)/3 = 1.36 m
For option E;
When x = 2,
y = (6.8 × 2)/3 = 4.533 m
From our calculations, the only values of y that correspond with the given value of y in the options are Options B & D
Choose all the factors of 5. (Check all that apply.)
4
1
3
2
5
plz i need help
Answer:
1 and 5
Step-by-step explanation:
only 1*5 equals 5
A system of linear equations is shown below.
2x – 3y = 15
-2x + y = -1
Choose a method (Elimination or Substitution) to solve the system of equations. Solve and explain your process.
New York and Denver are in different time zones. When it is noon in New York, it is 10:00 a.m. in Denver. At 2:00 p.m. in New York, a train departs, and it arrives in Denver 45 hours later. What time is it in Denver when the train arrives?
Answer:
9:00 AMStep-by-step explanation:
Time in New York = noon = 12:00 PMTime in Denver = 10:00 AMTime difference = -2 hours
Train departs at 2:00 PMTravel time = 45 hoursTrain arrival time:
2:00 PM + 45 hours = 2:00 PM - 3 hours (plus 2 days) = 11:00 AMConverting to Denver time:
11:00 AM - 2 hours = 9:00 AMAnswer:
9:00 AM
Step-by-step explanation:
Kevin bought 15 bananas for 4.50. How much does 1 banana cost?
Answer:
$0.30
Step-by-step explanation:
Divide 4.50 by 15.
Hesperia Community Center is buying new seating for their building. They want to purchase a combination of stools and chairs. Stools cost $15 and chairs cost $25. The center cannot spend more than $1500.
Which inequality represents all possible combinations of s stools and c chairs?
15s+25c<1500
15c+25s≥1500
15c+25s≤1500
15s+25c≤1500
Answer:
15s + 25c is less than or equal to (the sign that’s pointing left with the aural sign under it) 1500
also d lol
Step-by-step explanation:
the stools are s and each stool cost 15$ same thing with chairs. the chairs are c and they cost 25$, they have to equal or be less than 1500$