A concession stand sells hamburgers. The revenue from the hamburgers is (30x + 45) dollars. The price of a hamburger is $5. Writ
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Answer:
Step-by-step explanation:
A proportion could be used.
With 2 parts of compost and 6 parts potting soil, you would end up with 8 total parts.
So it can be written as a ratio of compost to total mix, or
The problem states 10 kg are needed in total, and the variable would be the amount of compost
As a ratio it would be .
Use the ratios to write a proportion.
Multiply both sides of the equation by 10
Convert to a decimal if desired.