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OleMash [197]
2 years ago
15

Simplify the algebraic expression: 4x + 8y + 7x² + 5x – 2y.

Mathematics
1 answer:
-BARSIC- [3]2 years ago
5 0

Answer:

7x² + 9x + 6y

Step-by-step explanation:

7x² + 4x + 5x + 8y - 2y

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Elliot has a total of 26 books. He has 12 more fiction books than nonfiction books. Let x represent the number of fiction books
AlladinOne [14]

<u>Answers</u>

19 fiction books

7 nonfiction books


<u>Explanation</u>

x + y = 26  ............................................. (i)

x – y = 12  ............................................ (ii)

Elliot added the two equations and the result was

2x = 38.

Dividing both sides by 2;

x = 19

There are 19 fiction books.

Substituting x in equation (i),

x + y = 26             when x = 19

19 + y = 26

y = 26 - 19

   = 7

There are 7 nonfiction books

4 0
3 years ago
Read 2 more answers
Katie is doing an inventory at American Eagle. There is 125 pairs of jeans. 36 pairs of jeans are women's skinny jeans. What per
ZanzabumX [31]
All you have to do is put 36/125. This will get you .288. When rounded to the nearest percent, it is 28%.
3 0
3 years ago
#9 was the the one I need help with anyone plz help Thank You:)
pentagon [3]
Your answers are wrong. the function f(x) is like a factory. you put in something ( a number) and it will spit you out something else (a different number depending on the function). your function, f (x)= -2x+1

you can put anything in that function. let say k.
f(x=k) = -2k+1. you just replace the x with k.
in this particular problem they way f(-2) ,f(0), f(1) and f(2).
here are the results
f(x=-2) = f(-2) = -2×(-2)+1 =5
f(x=0) = f(0) = -2×(0)+1 =1
f(x=1) = f(1) = -2×(1)+1 =-1
f(x=2) = f(2) = -2×(2)+1 =-3
3 0
3 years ago
Hilary want to fill a mini cake pan with batter to make a mini cake for Philip's party. The cake pan is 4.0 inches long, 9.0 inc
Sophie [7]
The formula to solve for the volume (V) of a rectangular prism is,

                                           V = L x W x H

where L is the length, W is width, and H the height or depth.

Substituting the known dimensions on the equation above,
 
                             V = (4 in) x (9 in) x (2.2 in) = 79.2 in^3

Thus, the volume of the cake pan is 79.2 in^3.



3 0
3 years ago
Paul has $78 in the bank and saves $30 each week. What is the initial value? Be sure to use negative signs if needed.
marin [14]

Answer:

The initial value is $78

Step-by-step explanation:

Given

Base\ Amount = \$78

Additional = \$30 (weekly)

Required

Determine the initial value

The initial value is the amount he has in its bank account before making his weekly savings.

From the question, we have that his initial balance is $78.

Hence, the initial value is $78

However, his weekly balance can be expressed as:

Balance = Base\ Amount + Additional * number\ of weeks

Represent number of weeks with x; So, we have:

Balance = 78 + 30 * x

Balance = 78 + 30 x

6 0
2 years ago
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