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2 years ago

Www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNsikas

Mathematics

1 answer:

mel-nik [20]2 years ago

4 0

Answer:

Step-by-step explanation:

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Give one example of when you would use the friendly numbers strategy to subtract. Explain why.

ziro4ka [17]

In the addition process this usually involves:

rounding numbers up to the nearest multiple of 10 or 100 subtracting the extras that were added at the end.

In the subtraction process this usually involves subtracting too much and completing the calculation by putting some back.

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3 years ago

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jeka94

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Step-by-step explanation:

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3 years ago

Mr.Ward runs a lot. He ran 45 minutes each day, 5 days each week , for 16 weeks . In that time, he ran 450 miles. What was his a

Savatey [412]

Answer:

7.5 miles per hour.

Step-by-step explanation:

We have been given that Mr. Ward runs a lot. He ran 45 minutes each day, 5 days each week, for 16 weeks.

First of all, we will find time for that Mr. Ward ran in 16 weeks.

We will multiply 5 by 16 to find number of days for that Mr. Ward ran and then we will multiply the result by 45 minutes to find the time.

$\text{Time for that Mr. Ward ran in 16 weeks}=16\times 5\times 45\text{ minutes}$

$\text{Time for that Mr. Ward ran in 16 weeks}=3600\text{ minutes}$

Now, we will divide 3600 minutes by 60 minutes to convert time into hours as:

$\text{Hours}=\frac{3600}{60}=60$

Now, we will divide 450 miles by 60 hours to find Mr. Ward's average speed as:

$\text{Mr. Ward's average speed}=\frac{450\text{ miles}}{\text{60 hours}}$

$\text{Mr. Ward's average speed}=\frac{7.5\text{ miles}}{\text{ Hour}}$

Therefore, Mr. Ward's average speed in 7.5 miles per hour.

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3 years ago

What is the value of w in this equation? 15 + w = 75

uranmaximum [27]

Answer:

$w=60$

Step-by-step explanation:

$15+w=75$

Subtract 15 from both sides of the equation.

$15+w-15=75-15$

$w=60$

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3 years ago

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