Question

Dion bought 3 pounds of oranges and 2 pounds of grapefruit. Write an expression to represent the amount of money Dion spent on the fruit. Then evaluate the expression. How much did Dion spend?

Answer 1

Solution:

Given:

• Dion bought 3 pounds of oranges, and 2 pounds of grapefruit
• 1 pound of oranges = o = $0.99
• 1 pound of grapefruit = g = $1.59

Let's represent the number of oranges and grapefruits by the letters o and g.

This means that...

• Dion purchase: 3o + 2g

Now, let's solve the expression to find out how much does Dion has to pay.

Substituting o and g with the given values:

• 3o + 2g
• => 3(0.99) + 2(1.59)
• => 3(1.00 - 0.01) + 2(1.60 - 0.01)
• => (3 - 0.03) + (3.20 - 0.02)
• => 2.97 + 3.18
• => $6.15

We also know that Dion gave a $20. To find the change, subtract the money Dion gave with the money required to pay for the fruits.

• => 20 - 6.15
• => $13.85

Thus, Dion got $13.85 as change.