Question

If Jasper installs a floor himself, it will take him 7 hours. Working with Yolanda, it will take them 3 hours. If they work together, what is the missing value in the table that represents the part of the floor Jasper will install? (3) r 7r 7(3) Mark this and return

Answer 1

Answer:

3/7 th part of installation of floor will be done by Jasper when working with Yolanda for 3 hours.

Step-by-step explanation:

lets complete  installing a floor be represented by W

Jasper take 7 hours to complete the installing floor  W

so installing done by jasper in 7 hour = W

so installing done by jasper in 1 hour = W÷7 = W/7

Working with Yolanda , it will take 3 hours to complete work together.

installation done by jasper in 3 hours =  (installing done by jasper in 1 hour)×3  , remaining is done by Yolanda in 3 hours for which we do not need to calculate anything.

lets concentrate only on installation done by jasper in 3 hours

= (W/7)×3 = 3W/7

so the part of floor installed by jasper = installation done by jasper in 3 hours ÷ total installation = 3W/7÷W = 3/7

Hence 3/7 th of installation of floor will be done by Jasper when working with Yolanda for 3 hours.

Answer 2

Answer:

1/7(3)

Step-by-step explanation:

combine da terms