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oksano4ka [1.4K]
3 years ago
11

I need help so much. :(

Mathematics
1 answer:
AlexFokin [52]3 years ago
4 0

Answer:

C

Step-by-step explanation:

the slope is how much it changes each time, so in the third chart x changes by 4, the rest are not by 4.

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In order to win a quiz contest, olga must score more than 400 points. She earns 12 points for each right answer, and loses 4 poi
Ket [755]

The inequality that represents the number of right answers (r) and wrong answers (w) Olga can give to win the contest is:  3r-w>100

<u><em>Explanation</em></u>

Number of right answers is  r and number of wrong answers is  w

Olga earns 12 points for each right answer and loses 4 points for each wrong answer.

So, total points earned for r right answers =12r

and total points lost for w wrong answers =4w

That means, <u>her score will be</u>:  (12r-4w) points.

In order to win the quiz contest, Olga must score <u>more than 400 points</u>. So, the inequality will be.......

12r-4w>400\\ \\4(3r-w)>400\\ \\  3r-w>100

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Is 17/10 a rational number ?
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