Answer:
Step-by-step explanation:

Answer:
25.6 miles per hour
640 divided by 25 = 25.6
25.6 is the quotient.
The answer is 25.6 miles per hour.
Oh this is very easy, 5.7 to the power of 10
Total ratio = 4+7 = 11
33/11 = 3
4x3 = 12
7x3 = 21
so the two groups are 12:21
which is also = 4:7
Answer:
AC is four times longer than DF
Step-by-step explanation:
AC is the diameter of the circle E and DE is the radius of the circle E
AC = 2 x DE
DE is the diameter of the circle F and DF is the radius of the circle F
DE = 2 x DF
AC = 2 x DE
AC = 2 x (2 x DF)
AC = 4 x DF
So AC is four times longer than DF