3 years ago

Rewrite the expression by using symbols 7(x - 20)

Mathematics

1 answer:

Lelechka [254]3 years ago

5 0

7 × x - 7 × 20

You could rewrite it this way, 7 x (x-20), but the answer above is better 'cause it takes away the grouping symbols

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What is the equation in point-slope form of the line that passes through the points (7, 5) and (−4, −1)?

Debora [2.8K]

The point-slope form:

$y-y_1=m(x-x_1)$

m - slope

(x₁, y₁) - point

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (7, 5) and (-4, -1). Substitute:

$m=\dfrac{-1-5}{-4-7}=\dfrac{-6}{-11}=\dfrac{6}{11}$

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3 years ago

Given: 7x/2 < 5. Choose the solution set.

larisa [96]

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3 years ago

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BlackZzzverrR [31]

Answer:

59 fps

Explanation:

40 mph = 58.6667 fps

Round 58.6667 to the nearest Whole Number: 59.

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4 years ago

#4 a and b and #5 please

Cloud [144]

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3 years ago

If it takes 3 days for 10 workers to finish building one house, how many days will it take 15 workers to finish four houses?

Ksivusya [100]

-- It takes 10 workers 3 days to build 1 house.
so
-- It takes 10 workers 1 day to build 1/3 of a house.
so
-- It takes 1 worker 1 day to build 1/30 of a house.

You got 15 workers and you need 4 houses ?

Well, as we just calculated . . .

-- It takes 1 worker 1 day to build 1/30 of a house.
so
-- It takes 15 workers 1 day to build 15/30 = 1/2 of a house.
so
-- It takes 15 workers 2 days to build 1 whole house.
so
-- It takes 15 workers 8 days to build 4 houses.

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3 years ago