Question

In one week, a music store sold 9 guitars for a total of of $3611. Electric guitars sold for $479 each and acoustic guitars sold for $339 each. How many of each type of guitar were sold?

Answer 1

Answer: 5 acustic and 4 electric

Step-by-step explanation:

e+a=9

e*479+a*339=3611

a=9-e

e*479+ (9-e)*339=3611

479e+3051-339e=3611

479e-339e=560

140e=560

e=4

a=9-4

a=5