Answer: i'm pretty sure the answer is 10.5
Step-by-step explanation: <em>i multiplied 5/7 by 14.7 </em>
I'm sorry if this is wrong but if it's right i need brainliest to rank up so please mark me brainliest:)
Answer:
12 hours
Step-by-step explanation:
Let Theo's siste can paint a fence in x times
Given.
Theo can paint a fence three times as fast as his sister can. Working together, they can paint a fence in 9 hours.

Apply cross multiplication

Theo’s sister to paint the fence in 12 hours.
Answer:
840mi. - 12 hrs
x - 3 hrs
This is a simple cross multiplying problem.
840 _ 12
x -- 3 ⇒12x=3(840) ⇒ 4x=280 ⇒ x=70 miles
:D
Step-by-step explanation:
The problem is the number by the side
15:24 to the lowest term is 5:8. This is because you divide each number by the same number. You will divided 15 and 24 by 3 to get 5:8.