13.7k views
5 votes
Brenda has three times more quarters

than Lisa has. Brenda gives 20% of her
quarters to Lisa, but she still has $1
more. How many quarters does Lisa
have in the beginning?
E. 5
F. 10
G. 15
H. 20

2 Answers

4 votes
5 is the answer i think
User Meti
by
7.3k points
3 votes

Answer:

5

Explanation:

If Lisa has x quarters and Brenda has 3x quarters, we can write:

80% * 3x = 4 + (20% * 3x + x) -- We write 4 because 1 dollar = 4 quarters

0.8 * 3x = 4 + (0.2 * 3x + x)

2.4x = 4 + 1.6x

0.8x = 4

x = 5

User Divya MV
by
6.3k points
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