Question

Han earns $33.00 fo babysitting 4 hours At this rate how much will he earn if he babysits for 7 hours

Answer 1

$57.75

Explanation:

$33.00 divided by 4 is $8.25 per hour. Then you multiply 7 time $8.25 which gives you the correct answer of $57.75.

Answer 2

$57.75

Explanation:

There is a direct proportionality relationship between the amount he earns and the time he spends babysitting.

As the number of hours increases, the time increases at a fixed rate.

If the time is t and the amount earned f

then,

f ∝ t

33 = k(4) where k is the constant of proportionality

k = 33/4

f = 33/4 (t)

The amount he will earn if he babysits for 7 hours

= (33/4) × 7

= $57.75