Question

Gina was earning $10 per hour. Then she received a 10% pay rate increase. Next month, her pay rate will decrease by 10%. What will Gina's pay rate be next month?

Answer 1

Gina's pay rate next month will be =$9.9 per hour

Explanation:

Gina was initial earnings was = $10 per hour

She received an increase by = 10%

Increase in amount received =
`10\%\ of\ \$10= 0.1*\$10 =\$1`

New earnings =
`\$10+\$1=\$11` per hour

Next month her pay rate will decrease by = 10%

Decrease in pay rate next month will be =
`10\%\ of\ \$11= 0.1*\$11 =\$1.1`

Thus, Gina's pay rate next month will be =
`\$11-\$1.1=\$9.9` per hour