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The equation 4x – 45 = y is used to find your profit, y, in dollars from buying $45 of supplies and washing cars for $4 each. What does the x stand for?

The equation 4x – 45 = y is used to find your profit, y, in dollars from buying $45 of supplies and washing cars for $4 each. What does the x stand for?
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The equation 4x – 45 = y is used to find your profit, y, in dollars from buying $45 of supplies and washing cars for $4 each. What does the x stand for?

User Tanin
by
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1 Answer

4 votes
The X stands for ‘amount of cars washed’
If you was to wash 100 cars the equation would be

4 x 100 = 400
400-45= 355
Profit = $355
User Michael Wales
by
8.3k points
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