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exis [7]
3 years ago
5

Find the dimension of the cube volume = 64

Mathematics
1 answer:
olganol [36]3 years ago
6 0
S
A
=
96
sq in.
Explanation:
V
=
s
3

64
=
s
3

find the cubic root of each side
3
√
64
=
s

4
=
s

so the side of the cube is 4 cu in.
The surface area of a cube is

S
A
=
n
A

where
S
A
is surface area,
n
is the number of faces, and
A
is the area of one face.
Te area of one face (
A
) is
s
2

so
A
=
16

n
=
6
S
A
=
6
⋅
16
=
96
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Answer:

The amount they charged to wash a car is <u>$6</u> and vacuum a car is <u>$2</u>.

Step-by-step explanation:

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Trisha and Byron are washing and vacuuming cars to raise money for a class trip.

Trisha raised $38 washington 5 cars and vacuuming 4 cars.

Byron raises $28 by washing 4 cars and vacuuming 2 cars.

Now, to find the amount they charged to wash a car and vacuum a car.

Let the amount charged for washing a car be x.

And the amount charged for vacuuming a car be y.

So, the total amount Trisha raised:

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And, the total amount Byron raised:

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Now, to get the amount they charged to wash a car and vacuum a car we use elimination method:

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5x+4y=38\\8x+4y=56

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Now, putting the value of x in equation (1) we get:

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4y=8.

<em>Dividing both sides by 4 we get:</em>

y=2.

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