Question

Draw a graph to convert miles to kilometers,given 1 mile=1.6km.use graph to find
A) how many kilometers are approximately equal to 4.5 miles
B) how many miles are appropriately equal to 8 km

Answer 1

I don't by the graph way but I can answer it simpler way .
We have been given that 1 mile= 1.6 kilometres
We also know that 1km=1000metres so
by multiplying on both sides
1.6×1000=1×1000
1600m is to 1000m
This means that miles and kilometres are in ratio of
1.6:1 so...
(a)4.5×1.6
=9.20km
This means that 4.5 miles is equal to 9.20km

(B)we have been given that 1mile = 1km so...
let's take the H as no. of miles so...
H×1.6=8
taking left hand side and right hand side.
H=8÷1.6
H = 5
approximately 5 miles will be equal to 8 km