Question

Jonathan goes to the store and purchases 3 pencils for $0.28 each , and y number of erasers for $0.38 each . Write an expression that shows that much Jonathan spent .

Answer 1

The expression 1.22y is the amount spent by Jonathan.

Step-by-step explanation:

• The cost per pencil = $0.28

∴ The total cost of 3 pencils = 0.28$\times$3 = $0.84

• The cost per eraser = $0.38

∴ The total cost of y erasers = 0.38$\times$y = $0.38y

Jonathan spent = Total cost of pencil + total cost of eraser

⇒ 0.84 + 0.38y

⇒ 1.22y