Question

You are adding are to a tire the air pressure in the tire should be 30 27/200 per square inch what decimal should you watch for a digital pressure gauge

Answer 1

`30.135\ (pounds)/(in^2)`

Explanation:

we have

`30(27)/(200)\ (pounds)/(in^2)`

Convert mixed number to decimal number

we know that

`30(27)/(200)=30+(27)/(200)`

Simplify the fraction
`(27)/(200)`

Divide by 2 both numerator and denominator

`(27)/(200)=(13.5)/(100)`

Remember that

To divide a whole or a decimal number by 100, move the decimal point two places to the left

so

`(13.5)/(100)=0.135`

substitute in the expression above

`30+(27)/(200)=30+0.135=30.135\ (pounds)/(in^2)`