Question

Mrs. Jolley is thinking of buying solar panels to put on the roof of her new house. The sunny solar company told her that for every 2 panels, she will save $60 on her electric bill.

(a) Draw a model or make a visual representation for the ratio for the panels to the money that she will save on her electric bill.


(b) Write the ratio of panels to money saved as a reduced fraction.

Answer 1

y = $30x ;

1 : $30

Explanation:

Given that :

$60 is saved in electricity bill for every 2 panels

Model, y

Amount saved, y = amount saved per panel * number of panels

Let number of panels = x

Hence, total amount saved, y ;

y = $30x

Ratio of panels to money saved :

Number of panels : amount of money saved

2 : $60

1 : $30

Hence, $30 is saved in cost of electricity bill per 1 solar panel purchased.