Question

Nate spent $28 on 2 DVDs. At this rate, how much would 5 DVDs cost? At what rate did she spend her money?

Answer 1

5 DVDs - $70
1 DVD - $14

Explanation:

Since 2 DVDs cost $28, we now need to find the cost of 1 DVD. We put this is in a linear order.

`$28=2 DVDs`
`$x = 1 DVD`

Now cross multiply the two equations

`28 =2x`
`x = 28/2`
`x = 14`

Thus Nate buys a DVD at the rate of $14

We then repeat the procedure to find the cost for 5 DVDs

`$14 = 1 DVD`
`$x = 5 DVDs`

Cross multiply

`x = $70`

Thus 5 DVDs cost $70