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19.11.2019 •
Mathematics
You have $2.65 in coins. write a system of equations that represents this situation. use variables to represent the number of each type of coin.
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Ответ:
c=f−4m/y
Step-by-step explanation:
Let's solve for c.
2cy+8m=2f
Step 1: Add -8m to both sides.
2cy+8m+−8m=2f+−8m
2cy=2f−8m
Step 2: Divide both sides by 2y.
2cy/2y=2f−8m/2y
c=f−4m/y