a motor scooter travels 18 mi in the same time that a bicycle covers 8 mi. If the rate of the scooter is 5 mph more than twice t
he rate of the bicycle, find both rates.
1 answer:
If you would like to find the rate of the bicycle and the scooter, you can do this using the following steps:
a scooter: 18 miles ... 2 * r + 5 mph
a bicycle: 8 miles ... r = ?
18 * r = 8 * (2 * r + 5)
18 * r = 16 * r + 40
18 * r - 16 * r = 40
2 * r = 40
r = 20 mph
a bicycle: r = 20 mph
a scooter: 2 * r + 5 mph = 2 * 20 + 5 = 45 mph
The correct result would be: The rate of the scooter is 45 mph and the rate of the bicycle is 20 mph.
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Answer:
20.25 pi
Step-by-step explanation:
The circumference of a circle is given by
C = 2 * pi *r
9 pi = 2 * pi *r
Divide each side by 2pi
9pi / 2 pi = 2 pi r / 2 pi
4.5 = r
Now we can find area
A = pi r^2
= pi ( 4.5)^2
20.25 pi
I think the answer is b I havent done problems like that in like 2 years i hope i helped
Answer:
$5829.57
Step-by-step explanation:
Annually compounding interest formula: 
5000(1+.0525)^3
5829.567266
which rounds to: 5829.57
