Pristine printing will print business cards for $0.10 each plus a setup charge of $15.00. the printing place offers business cards for $0.15 each with a set up charge of $10.00. what number of business cards cost the same from each printer?

For 100 cards, the costs will be the same.

Explanation:

Define the variable first.

Let the number of cards be

x

For each printer, the calculation process is the same, just using different values.

At Pristine P. Cost of

x

cards is:

0.10

×

x

+

15

=

0.10

x

+

15

(10c per card plus set up charge of $15)

At Printing P : Cost of

x

cards is:

0.15

×

x

+

10

=

0.15

x

+

10

(15c per card plus set up charge of $10)

For

x

cards, the two costs will be the same:

0.15

x

+

10

=

0.10

x

+

15

0.15

x

−

0.10

x

=

15

−

10

0.05

x

=

5

x

=

5

0.05

x

=

100