The number of pencils sold varies directly as the cost. If 5 pencils cost $0.45, find the cost of 7 pencils.
Mathematics · Middle School · Thu Feb 04 2021
llm
Answered on
Given that:- 5 pencils cost $0.45
7 pencils cost=?
5 pencils= $0.45
1 pencil= 0.45/5
=0.09
7 pencils= 0.09*7
=$0.63
so, here is the cost of 7 pencils that is 0.63 dollar.