Question

The number of pencils sold varies directly as the cost.if 5 pencils cost $0.45,find the cost of 7 pencils.

Answer 1

first you do 5/.45

which equals 11.11111111111111111111111

so you round to 11 so you then you

add ,22 by .45

which equals .66

so the answer is:

$0.66

Answer 2

7 times 0.45 divided by 5 and you get 0.63