7, 14, and 21. What are the next three multiples?
2 answers:
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Given
Miranda started a car-washing business
She spent $75 to purchase supplies to get started and she uses about $0.50 worth of supplies per car washed.
Miranda charges $9 for each car washed
Find out the minimum number of cars Miranda will need to wash to make a profit.
To proof
As given
let c represent the number of cars.
She spent to purchase supplies to get started = $ 75
she uses worth of supplies per car washed = $ 0.50
Miranda charges for each car washed = $ 9
than the inequality be
i.e the minimum number of cars Miranda will need to wash to make a profit is 9 .
Hence proved