Question

Alejandro bought $3.50 worth of pencils and erasers at the school store. Pencils cost $0.50 apiece, and erasers cost $0.75 apiece. Which equation written in standard form represents the number of pencils, p, and the number of erasers, e, that Alejandro bought?

A. 0.75e = 3.50 – 0.50p
B. 0.50p + 0.75e = 3.50
C. 3e = 14 – 2p
D. 2p + 3e = 14

Answer 1

the correct answer is B

Answer 2

The answer is the option B

`0.50p+0.75e=3.50`

Explanation:

Let

p------> the number of pencils

e------> the number of erasers

we know that

The total cost of pencils and erasers, is equal to the numbers of pencils multiplied by
`\$0.50` plus the number of erasers multiplied by
`\$0.75`

so

`0.50p+0.75e=3.50` ------> equation that represent the situation written in standard form