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Neporo4naja [7]
3 years ago
12

If 10a+10b=35, what is the average (arithmetic mean) of a and b?

Mathematics
1 answer:
worty [1.4K]3 years ago
6 0

Answer:

1.75

Step-by-step explanation:

If a  and b are two numbers, then their arithmetic mean is

\dfrac{a+b}{2}

Given:

10a+10b=35

Divide this equation by 10:

a+b=3.5

Now, divide it by 2:

\dfrac{a+b}{2}=\dfrac{3.5}{2}\\ \\\dfrac{a+b}{2}=1.75

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A phone company offers two monthly plans. Plan A costs $12 plus an additional $0.16 for each minute of calls. Plan B costs $29 p
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Answer:

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<u>The equation to reflect the monthly plans:</u>

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<u>We need to find the value of x when f(x) = g(x):</u>

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<u>The cost is:</u>

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It costs the factory $4 to make each Part A. About how much dors it cost to make Part A each month?
AnnZ [28]

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3 years ago
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Answer:

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