Answer:
a)7/4= n/12
21=n
b) 8+4y=6
4y=-2
y=-1/2
Step-by-step explanation:
Answer: 40 miles an hour
Step-by-step explanation:
It goes .5 more than the car so
if .5 = 20
.5 x 2 = 1
1 = 40
So 40 miles an hour
Answer:
The answer to the expression is 9
Step-by-step explanation:
A point on the edge of the roller travels the circumference of the roller in 1 revolution, so that its linear velocity is
(10 rev/s) * (2*(14.25 cm)*pi cm/rev) = 285 pi cm/s
or about 895.4 cm/s.
