3 years ago

What is a slope of a line that passes through (4, -1) and (7,-6)

Mathematics

1 answer:

frutty [35]3 years ago

5 0

Answer: slope = $-\frac{5}{3}$

Step-by-step explanation:

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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

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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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Rihanna planned a rectangular courtyard for a park and made a scale drawing using inches as the unit of measurement. She origina

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Answer: One inch represented 3 feet in the first scale, but now 1 inch now represents 4 feet in the second scale.

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3 years ago

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You estimated a length to be 10 ft, but when you actually measured, you found it to be 8.75 ft. What was your percent error for

kotykmax [81]

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2 years ago

Set up a rational equation and then solve the following problems. A positive integer is twice another. The difference of the rec

kupik [55]

Answer:

9 and 18

Step-by-step explanation:

2x and x are the numbers

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2/2x-1/2x=1/18

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3 years ago

A card is drawn from a standard deck of 52 cards. What is the theoretical probability as a decimal of drawing the number 8? Roun

Alborosie

The answer would be 0.15 because in a deck there are only 4 cards of 8 (diamonds, hearts, clovers, and spades). Since there are 52 cards, you would divide 8 by 52 to get 0.153846, but since it says to round to the nearest hundredths, the answer would be 0.15.

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4 years ago