Question

Given that
5x:8=7:2
Calculate the value of x

Answer 1

x = 5.6

Explanation:

Expressing the ratio in fractional form, that is

`(5x)/(8)` =
`(7)/(2)` ( cross- multiply )

10x = 56 ( divide both sides by 10 )

x = 5.6

Answer 2

Answer: 5.6

Explanation:

5x:8=7:2

Ratio means division

So we can rewrite as

5x/8=7/2

Using cross multiply

5x×2=7×8

10x=7×8

10x=56

X=56/10

X=5.6

The value of X= 5.6