Erica babysits for 4 1/2 hours and is paid $27 . If the people she babysits for have $31.50 to pay her, how long can they stay out?

Question

Erica babysits for 4 1/2 hours and is paid $27 . If the people she babysits for have $31.50 to pay her, how long can they stay out?

in progress 0
Yến Oanh 1 year 2021-09-02T07:24:59+00:00 1 Answers 60 views 0

Answers ( )

  1. Answer:

    5.25 hours or 5 1/4 hours

    Step-by-step explanation:

    According to the scenario, calculation of given data are as follows,

    Total time = 4 1/2 hours or 270 mins

    Total payment = $27

    First we calculate the time for $1, then

    So, $27 = 270 mins

    $1 = 270 ÷ 27 = 10 mins

    Now, we can calculate total time in $31.50 by using following formula,

    Total time in $31.50 = 10 mins × 31.50

    = 315 mins

    = 5.25 hours or 5 1/4 hours

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )