the cost of 3 pencils is $2.50. The cost of 4 books is $22.50. What is the cost of 2 books and a pencil?

Answer: $12.083

Step-by-step explanation:

The cost of 3 pencils is $ 2.50

The cost of 4 books is $22.50

The cost of a person is $2.50/3 = $0.83333

The cost of a book is $22.50/4 = $5.625

The cost of 2books and a person is

2*$5.625+$0.8333

$12.083

pencil = $0.83 books=$11.25

Step-by-step explanation:

to find the price of the pencils you have to divide the total amount by the number of pencils

$2.50/3 = $0.83 this gives you the price of one pencil

and the same for the books but multiply by the new amount of books "2"

2 ($22.50/4)

2 ($5.62)

$11.25

if you add both prices

$11.25+$0.83 = $12.08