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4 years ago

Estimate the product of the expression below to the nearest whole number.

1 answer:

4 0

Estimate means round
16.77 rounds to 17
3.81 rounds to 4
17X4 = 68

A trick I use for multiplying by 4 is to double the number twice

Example:
17 -> 34 -> 68

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What is the inch equivalent of 32.5 mm to the nearest 0.0001

zmey [24]

3.25 mm = 3.25 cm, 30 cm = 12 inches. So, 12/30 x 3.25 = 1.3

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4 years ago

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The answer to the problem

aliya0001 [1]

<h3>Answer: -2/3</h3>

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Apply the slope formula

m = (y2-y1)/(x2-x1)

m = (8-6)/(2-5)

m = (2)/(-3)

m = -2/3

As you can see, we subtract the y coordinates together. We also subtract the x values together in the same order. If the order is mixed up, then you'll get the wrong sign for the final answer.

The slope is equal to rise over run. Think of "rise" as "change in y", which explains the difference in y values. The run is equal to the change in x, which is the difference in x values.

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3 years ago

What is the slope of line a? A. -4 B. 4 C. -1/4 D. 1/4

Papessa [141]

The answer to your problem is the third option c.

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3 years ago

What is the greatest common factor of 72 and 18

Anon25 [30]

Answer:

Step-by-step explanation:

The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

The factors of 18 are 1, 2, 3, 6, 9, 18

The common factors are 1, 2, 3, 6, 9, 18

The greatest common factor = 18

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3 years ago

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Ginger wants to fill her new swimming pool. She has two pumps; the larger pump takes 40 minutes to fill the pool, and the smalle

Talja [164]

As per the problem,

The larger pump takes 40 minutes to fill the pool.

The smaller one takes 60 minutes.

When both the pumps are working , let the time taken be x minutes , then we can write

$\frac{1}{x}=\frac{1}{40}+\frac{1}{60}\\ \\ \text{Make the denominator equal we get}\\ \\ \frac{1}{x}=\frac{1}{40}*\frac{60}{60}+\frac{1}{60}*\frac{40}{40}\\ \\ \frac{1}{x}=\frac{60}{2400}+\frac{40}{24000}\\ \\ \text{Simplify we get}\\ \\ \frac{1}{x}=\frac{60+40}{2400}\\ \\ \frac{1}{x}=\frac{100}{2400}\\ \\ \frac{1}{x}=\frac{1}{24}\\ \\ x=24\\$

Hence, when both the pumps works together, Time taken =24 minutes.

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4 years ago

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