Question

You bought a magazine for $5 and four erasers. You spend a total of $25. How much did each eraser cost?

Answer 1

$5

Explanation:

Magazine cost: 5$ each

Eraser cost: X$ each

Total cost is the number of items (1 magazine) times the cost of each item (5$). We don't know the cost of each eraser, so we represent that using a variable, X.

• 1(5) + 4(X) = 25

• 5 + 4X = 25

• subtract 5 from both sides

• 4X = 25 - 5

• 4X = 20

• divide both sides by 4

• X = 20/4

• X = 5

• Each eraser cost 5$

Hope this helps :)

Answer 2

Subtract magazine from total:

25 -5 = 20

Divide by number of erasers:

20/4 = 5

Each eraser cost $5