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4vir4ik [10]
3 years ago
14

Which expression is equivalent to 1/2(2n+6 ​

Mathematics
2 answers:
Sati [7]3 years ago
7 0

Answer:

n+3

Step-by-step explanation:

Andrei [34K]3 years ago
4 0

Answer:

n+3

Step-by-step explanation:

1/2(2n+6)= (1/2*2)n+(1/2*6)

1/2(2n+6)=n+3

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if syn spends 15 minutes running, he burns 200 calories. how long would it take Syn to burn 150 calories?
kramer

Answer:

<h2>11.25min</h2>

Step-by-step explanation:

In this problem, we first need to find the rate at which syn burns calories per minute

so in 15mins, he burns 200 calories

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x= 200/15

x=13.33 calories per min this is the rate

So in one minute he will burn 13.33 calories

Now using the idea of rate=quantity/time

the rate=13.33

quantity=15 calories

time=?

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time=150/13.33

time=11.25min

   Alternatively

(very fast approach)

         if syn spend 15min to burn 200 cal

then he will spend x min to burn 150 cal

cross multiply

x=(150*15)/200

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3 years ago
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4 years ago
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