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avatar+113 

Naomi works in a music shop and earns $42 per day. She earns an extra $2 for each CD she sells. If Naomi wants to earn at least $80 per day, which inequality shows the minimum number of CDs, n, that she should sell?

 

A.42 + 2n ≤ 80, so n ≤ 19

 

B.42 + 2n ≥ 80, so n ≥ 19

 

C. 42 + 2n ≥ 80, so n ≥ 36

 

D.42 + 2n ≤ 80, so n ≤ 36

 Feb 24, 2022
 #1
avatar+36419 
0

B.42 + 2n ≥ 80, so n ≥ 19

 Feb 24, 2022
 #2
avatar+113 
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Thanks Chriscool

Kakashi  Feb 24, 2022
 #3
avatar+122995 
+1

42 + 2n  ≥ 80

 

And

 

2n ≥ 80 - 42

2n ≥ 38

n ≥ 38 / 2

n ≥ 19

 

 

cool cool cool

 Feb 24, 2022

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