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lesya [120]
3 years ago
8

The CD cost $16.50 before tax what is the total cost after a 7% sales tax is added

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
8 0

Answer: 17.65

Step-by-step explanation:

You turn 7% into a decimal or 0.07 then you multiply it by 16.50 you get 1.15 then you add it then you get 17.65.

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Solve for x.<br> 4≥10−7x<br><br> x≥−2<br> x≤−2<br> x≥2 ( I think this is the correct answer)<br> x≤2
Allisa [31]
<span>= -4 ≥ 10 − 7x         [ changed 4 to -4 on the request of questioner ]
Subtract 10 from both sides, 
= -4 - 10 </span>≥ -7x + 10 - 10
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Divide both sides from -7, 
= -14/-7 ≤ -7x/-7    [ sign changed as we use "-" here ]
= x ≥ 2

In short, Your Answer would be x ≥ 2 which is Option C

Hope this helps!
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