Question

a pencil costs $0.25 more than an eraser. if the cost of 8 pencils is $6.80, what is the cost of 1 eraser

Answer 1

-_+

Cost of a pencil = $0.25 + cost of an eraser (let it be as x)

=) Cost of 8 pencils = $6.80

=) 8($0.25 + x) = $6.80

=) $2 + 8x = $6.80

=) 8x = $4.80
=) x = $0.60

+_-

Answer 2

Answer:

Step-by-step explanation:

Let the price of eraserbe$x.

Price of pencil$ 0.25+x

Cost of 8 pencil $6.80

Cost of 1 pencil$6.80÷8 =$0.85.

By the problem

0.25+x=0.85

or,x =0.85-0.25=0.6

Price of eraser $0.6