Answer:
See below
Step-by-step explanation:
Givens
Jenny's Stats
t = m - 2
d = 60 miles
r = r1 + 10
Maureen's stats
d = 50 miles
t = m
r = r1
=======
60 = (r1 + 10) * (m - 2)
50 = r1 * m
m = 50/r1
60 = (r1 + 10)* (50/r1 - 2)
60 = 50 + 500/r1 - 2r1 - 20
60 = 30 + 500/r1 - 2r1
60r1 = 30r1 + 500 - 2*r1^2
30r1 = 500 - 2r1^2
2r1^2 + 30r1 - 500
This quadratic factors into
2 (r1 - 10)(r1 + 25)
r1 = 10 mph The 25 has no meaning.
m = 50/r1
m = 50/10
m = 5 hours
m - 2 = 3 hours.
If you mean surface area, the answer is 351.68 if you meant surface area for volume and l(length) for h. if not then I hope the surface area may have helped in finding your answer.
15 meters = 0.00932057 miles so
15 x sec in minute x minutes in hour
15 x 60 x 60 = 54000 meters
54,000 meters = 33.5 miles per hour
Since they want the unit of volume to be cm^3, first we have to convert the values given from inch into cm
=> 12 in = 30.48cm
4 in = 10.16cm
14 in = 35.56cm
Since both of the figures are cylinders, we have to find them one by one
Find the volume of the upper cylinder
Formula: V = pi*r^2*h
We know, pi = 3,
radius = diameter of base/2
=> r = 30.48cm/2 = 15.24cm
height = 30.48cm
We get V=3*(15.24)^2*30.48=21237.6cm^3
Find the volume of lower cylinder
Formula: V = pi*r^2*h
We know, pi = 3,
radius = diameter of base/2
=> r = 35.56cm/2 = 17.78cm
height = 10.16cm
We get
V = 3*(17.78)^2*10.16 = 9635.6cm^3
Therefore, the volume of the object is
V = 21237.6cm^3 + 9635.6cm^3
= 30873.2cm^3.
Answer:
42 Feet
Step-by-step explanation:
Buffet area:60 ft
dining area:18 ft
60 ft-18 ft= 42 ft