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3 years ago

Select the proper placement for parentheses to speed up the addition for the expression 4 + 6 + 5

Mathematics

2 answers:

nata0808 [166]3 years ago

6 0

Im guessing that by making 10 it will speed up the addition process so it should be
B since (6+4) = 10 then +5 =15

vlabodo [156]3 years ago

6 0

The answer is B becuase 6+4=10 10+5=15

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nadya68 [22]

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3 years ago

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The school is 625 meters far from Alex house. It took him 15 minutes to go from home to school, and run back to home in 10 minut

anygoal [31]

It is given in the question that

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Total distance is 625 meters and total time taken is

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Average speed is

$\frac{total \ distance \ travelled}{total \ time \ taken}$

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3 years ago

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In a random sample of 64 people, 48 are classified as 'successful.' Determine the sample proportion of 'successful' people.

hichkok12 [17]

Answer:

The sample proportion of 'successful' people is $\frac{3}{4}$ .

Step-by-step explanation:

The sample consist of 64 people and 48 of them are 'successful'. Hence, the proportion of 'successful' people is:

$p = \frac{n}{N}$

Where:

$N$ - People that forms the sample, dimensionless.

$n$ - People classified as 'successful', dimensionless.

Given that $n = 48$ and $N = 64$ , the sample proportion of 'successful' people is:

$p = \frac{48}{64}$

$p = \frac{3}{4}$

The sample proportion of 'successful' people is $\frac{3}{4}$ .

6 0

3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

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Zolol [24]

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