Question

An office supply store recently sold a black printer ink cartridge for ​$14.99 and a color printer ink cartridge for ​$22.99. At the start of a recent fall​ semester, a total of 60 of these cartridges was sold for a total of ​$1059.40. How many of each type were​ purchased? GIVE ME A ANSWER PLEASE!!!

Answer 1

C = 20 color ink

B = 40 black ink

Explanation:

Let B = number of black printer ink sold

Let C = number of color printer ink sold

B + C = 60

14.99*B + 22.99*C = 1059.40

B = 60 - C

14.99(60 - C) + 22.99*C = 1059.40

899.4 - 14.99C + 22.99C = 1059.4

899.4 - 8 C = 1059.4

8C = 1059.4 - 899.4

8C = 160

C = 20 color ink

B = 40 black ink