Five pencils and 4 erasers cost $7.65. Four pencils and 5 erasers cost $7.20. What is the cost of 2 erasers?

Question

Aubree

Mathematics

24 December, 21:19

Five pencils and 4 erasers cost $7.65. Four pencils and 5 erasers cost $7.20. What is the cost of 2 erasers?

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Answers (1)

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Mac · Answer 1

I think this is right ... I tried my best. If u get it sorry ... I'm very sorry

1. Divide 7.20 by 4 since the 4 are the pencils

2. divide 7.20 by 5 (5 represents the erasers)

3. Then finally multiply 1.44 from 7.20/5 and

2 and u get 2.88