Melody can cycle for 30 miles against the wind in the same amount of time that it takes to cycle 56 miles with the wind. If the
speed of the wind is 3mph, what is Melody's speed when she cycles with the wind?
Answer with Solution:
1 answer:
Answer:
Step-by-step explanation:
<u>Given:</u>
- Speed of the wind = 3 mph
- Speed in calm weather = x
- Speed with the wind = x + 3
- Speed against the wind = x - 3
<u>We know that:</u>
- distance = time*speed or
- time = distance / speed
<u>We have equal time in both cases so comparing d/s ratios:</u>
<u>Solve for x:</u>
- 56(x - 3) = 30(x + 3)
- 56x - 168 = 30x + 90
- 56x - 30x = 90 + 168
- 26x = 258
- x = 258/26
- x ≈ 9.92
<u>The speed with the wind is:</u>
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The answer to ur problem is c $60
Answer:
$28360
Step-by-step explanation:
Step one:
Given data
P=20000
rate= 6%
time= 6years
Step two:
compound interest
A=P(1+r)^t
substitute
A=20000(1+0.06)^6
A=20000(1.06)^6
A=20000*1.418
A=$28360
Answer:
Length=44feet
Width=12feet
Step-by-step explanation:
length:width=11:3
Perimeter=56feet
Sum of ratio=11+3
Sum of ratio=14
Length=11/14 x 56
Length=(11 x 56)/14
Length=616/14
Length=44feet
Width=3/14 x 56
Width=(3 x 56)/14
Width=168/14
Width=12feet