At the Holiday Valley Ski Resort, skis cost $16 to rent and snowboards cost $19. If 28 peopie rented on a certain day and the resort brought in $478, how many skis and snowboards were rented?
1 Answer
There were
Explanation:
Assume, there were
Since there were
Considering the price of
To solve this system of two linear equations with two unknowns, we will use the method of substitution - resolve the first equation for
From the first equation, adding
or, cancelling
Substitute this expression for
Using distributive law
Using commutative law of addition, we can change the sequence of operation. Also, perform the multiplication:
Using the distributive law, we can combine
Subtract
or
Adding
or
Dividing by
From this we can find
CHECKING: