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Nina [5.8K]
3 years ago
5

Evaluate 2r +1 if r=3

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
6 0

Answer:

7

Step-by-step explanation:

So, substitute in your 4 for r, 2(3) + 1. Multiply 2 and 3 to get 6 and then add a to get 7. I hope this helps :)

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The students at a High School earned money for an international animal rescue foundation. 82 seniors earned an average $26.75 pe
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Answer: A. $16.13

Step-by-step explanation:

Total students = 82+74+96+99 =351

Sum of earnings of 82 seniors  = $26.75  x 82= $2193.5

Sum of earnings of 74 juniors  = $12.25 x 74 = $906.5

Sum of earnings of 96 sophomores  = $15.50  x 96 = $1488

Sum of earnings of 99 freshmen  =  $10.85 x 99 = $1074.15

Total earnings =  $2193.5  + $906.5+  $1488 +$1074.15

= $5662.15

(Total earnings) ÷ (Total students )

= $5662.15÷ 351

= $16.13

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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4 0
3 years ago
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Natasha2012 [34]
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First, we want to combine like terms.
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5 0
3 years ago
Distribute. -3(-2x - 1)
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I believe the answer should be 6x+3

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Answer:

an angle greater than 180° and less than 360°.

Step-by-step explanation:

6 0
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