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Murljashka [212]
2 years ago
13

Which of the following is equivalent to the expression below when x >0?

Mathematics
1 answer:
borishaifa [10]2 years ago
8 0

Answer:

C

Step-by-step explanation:

kkgkckyxitxitzoyfoycyoc

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Cindy plans to shop for her school supplies and wants to know how much money she would need to spend. from her friend she knows
vlabodo [156]

Let the cost of 1 notebook be x and the cost of 1 binder be y.

4 notebooks and 3 binders would cost 23.5

Therefore, 4x + 3y = 23.5     (1)

7 notebooks and 6 binders would cost 44.5

Therefore, 7x + 6y = 44.5     (2)

Multiply the first equation by 2.

8x + 6y = 47     (3)

(3) - (2) gives

x = 2.5

Substitute the value of x in (1), we get,

4(2.5) + 3y = 23.5

10 + 3y = 23.5

3y = 23.5 - 10

3y = 13.5

y = 13.5/3

y = 4.5

Hence, cost of 5 notebooks and 3 binders is:

5x + 3y = 5(2.5) + 3(4.5)

           = 12.5 + 13.5

           = 26

Hence, cost of 5 notebooks and 3 binders is $26.

4 0
3 years ago
2x +3y -x-(8+1) HELP ME PLEASE! ANYBODY I NEED HELP! PLEASE
sergij07 [2.7K]

Answer:

7x+3y

Step-by-step explanation:

Hope this helps :)

7 0
2 years ago
Read 2 more answers
A square notepad has sides that are 10 centimeters long. What is the notepad's area?
blsea [12.9K]

Answer:

100cm²

Step-by-step explanation:

The notepad is square.

The area of a square = length X width.

All the sides of a square are the same length.

Therefore, the area of the notepad = 10 X 10 which equals 100.

Don't forget the units!

The units for area is cm².

The units for volume is cm³.

This is area so your answer is 100cm².

Hope this helped, have a nice day!

8 0
1 year ago
F(x)= 2/(x+3) find domain
Fantom [35]

Answer:

x < -3 or x > -3

6 0
2 years ago
How much warmer is 82 than 40?
Lorico [155]

Answer:82 is 42 degrees warmer than 42

Step-by-step explanation:

42-82=42

6 0
2 years ago
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