Question

You can rent time on computers at the local copy center for a a ​$ 7 setup charge and an additional ​$ 3.50 for every 10 minutes. How much time can be rented for ​$ 22?

Answer 1

Answer:

The answer should round up to 40 minutes. Do it to make sure the answer is 4 which in this case = 40

Step-by-step explanation:

$22 - 7 \div 3.50$

Answer 2

Answer:

Computer can be rented for  42.85 minutes using $22

Step-by-step explanation:

Given:

Setup charge =  ​$ 7

Additional charge for every 10 minutes = ​$ 3.50

To find:

The time for which the computer can be rented for  ​$ 22

Solution:

Let the additional time be x

for  additional charge for 10 minutes =3.50

for 1 minute , additional charge = $\frac{3.50}{10}$= $0.35

According to the question

setup cahrge + additional charge= $22

$7+(0.35\times x)=22$

$(0.35\times x)=22-7$

$(0.35\times x)=15$

$x=\frac{15}{035}$

x=42.85