Question

he system of equations shown can be used to show how much money a sports store made from selling
x
basketballs and
y
soccer balls.



{
x
+
y
=
77
20
x
+
15
y
=
1395



Which interpretation is supported by the system of equations?

A.
The store sold a total of
1
,
395
basketball and soccer balls.

B.
The price of each basketball and each soccer ball is the same.

C.
The store sold the same number of basketballs as soccer balls.

D.
The price of each basketball is
$
20
and the price of each soccer ball is
$
15
.

Answer 1

D.

The first equation says the store sold 77 balls in total (x + y = 77). The second says 20x + 15y = 1395 dollars, so each basketball brings $20 and each soccer ball brings $15, giving total revenue $1395.