7
You divide 28 by 4 and get 7. Then you divide 49 by whatever you get.
Answer:
5 1/2 hours
Step-by-step explanation:
by a factor of 5 means times 4
6*4=24
22/4=5.5 hours
Factor is the numbers that divides another number or expression without the remainder. For example, 3 and 6 are factors of 12 because 12÷ 3=4 and 12÷6=2.
Answer:

Step-by-step explanation:
We want to find the rational number which is equal to
.
Let
....eqn(1)
Multiply both sides by 10
.....eqn (2)
Subtract eqn (1) from eqn (2)


Divide both sides by 9.

You just do 40 times 0.825 and you will get your answer.