Question

if the tire pressure gauge is showing the reading 8% higher, the what is the actual pressure if the reading is 39.42?

Answer 1

The actual pressure is 36.50

Explanation:

Given that:

Tire pressure reading = 8% higher

Reading = 39.42

As 100% will be the actual reading.

New reading = (100+8)% = 108%

Let,

x be the actual pressure of the tire

108% of x = 39.42

`(108)/(100)x=39.42\\1.08x = 39.42`

Dividing both sides by 1.08

`(1.08x)/(1.08)=(39.42)/(1.08)\\x=36.50`

Hence,

The actual pressure is 36.50