She will earn $920 after working 40 hours.
Step-by-step explanation:
Given,
Amount per hour = $20
Raise = 15%
Raise amount = 15% of Amount per hour
[tex]Raise\ amount = \frac{15}{100}*20\\Raise\ amount= \frac{300}{100}\\Raise\ amount= \$3[/tex]
New amount per hour = Amount per hour + raise amount
New amount per hour = 20+3= $23
Total earning after working 40 hours = Amount per hour * 40
[tex]Total\ earning=23*40\\Total\ earning= \$920[/tex]
She will earn $920 after working 40 hours.
Keywords: Raise, percentage
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