Question

Part 1 #1

One day Mr. Flores had a customer come in and purchase 7 Bongo drums and 2 Tubas. His total was
$1,986. That same day he had another customer come
in and purchase 2 Bongos and 2 Tuba and his total
was $996.00. HINT: Let b=cost of bongo drums and
t= cost of a tuba.

Answer 1

Explanation:

The equations are,

7b + 2t = 1986 -----> 1

2b + 2t = 996 -----> 2

From 1,

2t = 1986 - 7b

Using 2t value in 2,

2b + 1986 - 7b = 996

-5b = 996-1986 = -990

Divide by -5,

b = $198

Use the value of b in 2t,

2t = 1986 - 7*198

2t = 1986 - 1386

2t = 600

Divide by 2,

t = $300