Answer:
ok
Step-by-step explanation:
Set up a proportion. If 12 3/5 feet can be traveled in one minute, then make that a fraction. 12 3/5 over one equals X over 30. Cross multiply 12 3/5×30 equals 1 X and solve.
Answer:
A. 14
Step-by-step explanation:
Answer:
19.0
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you of the relationship ...
Cos = Adjacent/Hypotenuse
cos(38°) = 15/w
w = 15/cos(38°) ≈ 19.035
The length of the missing side is about 19.0.
We know that time is distance over velocity, that is:
time = distance / velocity
t = d / v
Now from the given:
d / 460 + d / 500 = 4.8
Now we can find for d:
d = 4.8 / [1/460 + 1/500]
d = 1150 miles
So the time of each flight is:
flight = 1150 / 460 = 2.5 hours
<span>return flight = 1150 / 500 = 2.3 hours</span>
