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Natasha wants to average at least 90% in math class. Her test scores so far are 94%, 89%, 88%, 92% and 85%. What score does she need on her next test to reach her goal?

 Mar 29, 2021
 #1
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Let's set up the problem

 

Start with an inequality~

 

(94+89+88+92+85+x) / 6 ≥ 90

 

448 + x ≥ 540

 

x ≥ 92 

~

angel

 Mar 29, 2021
edited by TealSeal  Mar 29, 2021

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