: A sports store sells a total of 70 soccer balls in one month, and collects a total of $2,400. A limited Edition soccer ball is $65 and a Pro NSL soccer ball is $15.Write and solve

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Answer:

The store sold 43 pro NSL soccer balls.

The store sold 27 limited Edition soccer balls.

Step-by-step explanation:

Let x represent number of limited Edition soccer balls and y represent the number of pro NSL soccer balls.

We have been given that a sports store sells a total of 70 soccer balls in one month. We can represent this information in an equation as:

[tex]x+y=70...(1)[/tex]

Cost of x limited Edition soccer balls: [tex]65x[/tex]

Cost of y pro NSL soccer balls: [tex]15x[/tex]

We are also told that store collected a total of $2,400. We can represent this information in an equation as:

[tex]65x+15y=2400...(2)[/tex]

From equation (1), we will get:

[tex]x=70-y[/tex]

Substituting this value in equation (2), we will get:

[tex]65(70-y)+15y=2400[/tex]

[tex]4550-65y+15y=2400[/tex]

[tex]4550-50y=2400[/tex]

[tex]4550-4550-50y=2400-4550[/tex]

[tex]-50y=-2150[/tex]

[tex]\frac{-50y}{-50}=\frac{-2150}{-50}[/tex]

[tex]y=43[/tex]

Therefore, the store sold 43 pro NSL soccer balls.

Now, we will substitute [tex]y=43[/tex] in equation (1) to solve for x:

[tex]x+43=70[/tex]

[tex]x+43-43=70-43[/tex]

[tex]x=27/tex]

Therefore, the store sold 27 limited Edition soccer balls.

There are stores that sold 27 limited Edition soccer balls and 43 pro NSL soccer balls sold.

Given

A sports store sells a total of 70 soccer balls in one month and collects a total of $2,400.

A limited Edition soccer ball is $65 and a Pro NSL soccer ball is $15.

Let, the x represent the number of limited Edition soccer balls and y represent the number of pro NSL soccer balls.

A sports store sells a total of 70 soccer balls in one month and collects a total of $2,400.

[tex]\rm x+y=70[/tex]

A limited Edition soccer ball is $65 and a Pro NSL soccer ball is $15.

[tex]\rm 65x+15y=2400[/tex]

From equation 1

[tex]\rm x+y=70\\\\x=70-y[/tex]

Substitute the value of x in equation 1

[tex]\rm 65x+15y=2400\\\\\rm 65(70-y)+15y=2400\\\\4550-65y+15y=2400\\\\-50y=2400-4550\\\\-50y=-2150\\\\y=\dfrac{-2150}{-50}\\\\y=43[/tex]

Substitute the value of y in equation 1

[tex]\rm x+y=70\\\\x+43=70\\\\x=70-43\\\\x=27[/tex]

Hence, there are stores sold 27 limited Edition soccer balls and 43 pro NSL soccer balls sold.

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