Question

The differnce in price in colerd pencils and mechanical pencils is $0.20. If I purchased 18 colord pencils and 22 mechanical pencils for $27.60, what is the cost of the mechical pencil

Answer 1

Answer: Mechanical Pencils are $0.60

Colored Pencils are $0.80

Step-by-step explanation:

18c+22m=27.60

c-m=.20

+m    +m

so c= .20+m

Susitituete 18(.20+m)+22m=27.60

                  3.6+18m  +22m=27.60

                                    40m=27.60

                                      40m=24

                                         m=.60

c=.20+(.60)

c=.80