Question

A car is traveling at a speed of 60 miles per hour. What is the car's speed in kilometers per hour? How many kilometers will the car travel in 4 hours? In your computations, assume that 1 mile is equal to 1.6 kilometers.

Answer 1

Speed = km/h
distance traveled in 4 hours = km

Answer 2

@SolomonZelman

Answer 3

oh i was just going to do 60 x 4 = 240 x 1.6...lol

Answer 4

Well \[1~km=1.609~miles\]

Answer 5

so what the speed

Answer 6

so speed = 37.29

Answer 7

speed = 96
distance = 384

Answer 8

What?!

Answer 9

My bad

Answer 10

What is the car's speed in kilometers per hour?
(60 * 1.609 ) km per hour

Answer 11

in 4 hours, that times 4.

Answer 12

I got the answer what i said was it

Answer 13

SMART!

Answer 14

If we have a figure in a set unit. We need a way to transform that into other for different measurements. So I'd assume that physically the car is not moving any faster. Just that we are going to read a different number that means the same thing. So if we take a letter and call it x, x does not mean anything except the difference associated with miles and kilometers. So if the miles and kilometers are talking about the same thing then clearly it is the x that changes. So how about we take \[miles * x = kilometers\] in which case we use the 1 mile times x equals 1.6 kilometers.

Answer 15

Or we could put x on the other side and have 1.6 kilometers times x equals 1 mile