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Sergio [31]
4 years ago
9

Lisa spends 1/4 of her earnings on rent and 1/5 of her earnings on food let m stand for her monthly earnings in dollars. Which o

f the following expressions represents the number of dollars lisa has left at the end of the montj after paying rent and buying food
Mathematics
1 answer:
xenn [34]4 years ago
6 0

Answer:

Step-by-step explanation:

Let her total earnings be $m

Rent = m/4

Food = m/5

Let the among left be X

: m/4 + m/5 + X = m

Multiply each term by 20

5m + 4m + 20X = 20m

Collecting like terms

20X = 20m - 5m - 4m

20X = 11m

X = 11m/20

Amount left = $11m/20

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