Tim installs 50 square feet on his floor in 45 minutes. At this rate, how long does it take him to install 495 square feet?

445.5 minutes

or 7 hours 25 minutes 30 seconds

Step-by-step explanation:

We can use ratio's to solve

50 ft^2           495 ft^2

 =

45 minutes    x minutes

Using cross products

50x = 45*495

50x=22275

Divide each side by 50

50x/50 = 22275/50

x =445.5

445.5 minutes

If we want to convert to hours and minutes, divide by 60

7 hours is 420 minutes

445.5 -420 = 25.5

7 hours 25 minutes

.5 minutes is 30 seconds

7 hours 25 minutes 30 seconds

you would need to know all the numbers that are on there

step-by-step explanation:

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )