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3 years ago

Estimate the sum of 279 and 217

1 answer:

7 0

280+220=500 hope this helps

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Maru [420]

166.25 thats the answer

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2 years ago

NeTakaya

It’s 60 miles an hour rate

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2 years ago

Marianna [84]

Size got it right because it’s multiplied by 100

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2 years ago

worty [1.4K]

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:

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

6 0

3 years ago

Pavlova-9 [17]

x=11.4242....

100x=1142.4242....

100x-x = 99x = 1131

x=1131/99 = 11 42/99 (unreduced) = 11 14/33 (reduced fraction)

7 0

3 years ago