A construction worker bought several bottles of juice for $3 at the convenience store. She paid for them with a $20 bill.If "J" represents the number of bottles of juice,write an expression for the change she should receive.

Solve.Show each step.

Each bottle of juice costs $3, so to find the total price of the bottles, you would have to multiply the number of bottles by $3, or:
3×J

Since she paid for them with a $20 bill, you need to subtract the total price of the bottles (shown above) from 20. Let's say "y" is the amount of change she receives:
y=20-(3×J)

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A construction worker bought several bottles of juice for $3 at the convenience store. She paid for them with a $20 bill.If "J" represents the number of bottles of juice,write an expression for the change she should receive. Solve.Show each step.

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A construction worker bought several bottles of juice for $3 at the convenience store. She paid for them with a $20 bill.If "J" represents the number of bottles of juice,write an expression for the change she should receive.

Solve.Show each step.