Question

Kaitlyn can build a shed in 6 days. Mark can build the same shed in 8 days. Which equation can be used to find d, the number of days it would take Kaitlyn and Mark to build the shed together?

Answer 1

Let 'x' represent the number of days that Kaitlyn and Mark need to build the shed together, x>0.

Kaitlyn can build a shed in 6 days thus her rate is 1/6 shed per day.

Mark can build the same shed in 8 days thus his rate is 1/8 shed per day.

The together rate is 1/x shed per day.

1/6 + 1/8 = 1/x

x = 24/7 days

x = 3 days (3/7)24 hr

x = 3 days 10 hr

Kaitlyn and Mark will need 3 days and 10 hours to build the shed together.

Answer 2

Answer:

One-sixth d + one-eighth d = 1

I just did the quiz and got it right!