Question 997493: If a car takes 55 seconds to travel 1 mile then how long would it take to travel 6 miles
Answer by Theo(13342)   (Show Source):
You can put this solution on YOUR website! this can be solved as a straight ratio type problem.
55/1 = x/6
cross multiply to get 55*6 = 1*x
solve for x to get x = 330.
it would take the car 330 seconds to travel 6 miles.
that's 6 * 55 = 330.
you can also solve it as a rate * time = distance type problem.
if you're not sure what ratio to use, this is the preferred method, at least for me.
rate is what you are solving for.
time is 55 seconds
distance is 1 mile.
rate * time = distance becomes:
rate * 55 = 1
solve for rate to get rate = 1 /55.
that means the car is traveling at the rate of 1/55 of a mile in 1 second.
the rate stays the same at 1/55 of a mile in 1 second.
distance becomes 6 miles.
time is what you are solving for.
you get rate * time = distance becomes:
1/55 * time = 6
solve for time to get time = 6 / (1/55) = 6 * (55/1) = 330
that means that time is equal to 330 seconds.
the car goes 1 mile in 55 seconds.
the car goes 6 miles in 330 seconds.
this particular problem is relatively easy to solve by just looking at it and applying logic.
if it takes 55 seconds to go 1 miles, then it must take 6 * 55 seconds to go 6 miles.
other problems may not be so easily apparent, which is where the rate * time = distance formula comes in handy.
|
|
|
