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4 years ago

I NEED HELP ASAP!!!

Mathematics

1 answer:

Dahasolnce [82]4 years ago

3 0

Answer:

a. The constant = 45

b. The unit rate is 45 miles per hour

c. d = 45t

Step-by-step explanation:

a. ∵ d ∝ t

∴ d = kt

∵ d = 90 at t = 2

∴ 90 = k(2)

∴ k = 90 ÷ 2 = 45

∴ The constant of proportionality is 45

b. ∵ k = d(miles) ÷ t(hours) = 45

∴ The unit rate is 45 miles per hour

c. The equation is ⇒ d = 45t

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abruzzese [7]

Mark me Brainly answer 2/5

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3 years ago

36x-2 + 34x+2 = 180 solve

nikklg [1K]

Answer:

First, collect the like terms

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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FromTheMoon [43]

Option C: $\frac{4}{5}$ is the slope of the line

Explanation:

The line passes through the points $(3,-1)$ and $(-2,-5)$

We need to find the slope of the line.

The slope can be determined using the formula,

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

Where the coordinates $(x_1,y_1)$ and $(x_2,y_2)$ are $(3,-1)$ and $(-2,-5)$

Let us substitute the points in the formula

Thus, we have,

$m=\frac{-5-(-1)}{-2-3}$

Simplifying, we get,

$m=\frac{-5+1}{-2-3}$

Adding the numerator and denominator, we have,

$m=\frac{-4}{-5}$

Cancelling the negative terms, we get,

$m=\frac{4}{5}$

Thus, the slope of the line is $m=\frac{4}{5}$

Therefore, Option C is the correct answer.

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3 years ago

Rounded to the nearest tenth, what is the area of rectangle ABCD?

m_a_m_a [10]

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2 years ago

Mr. Marcus is splitting a huge new pack of colored pencils equally among his 25 students. After splitting the pencils he has 4 l

mamaluj [8]

Answer:

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Step-by-step explanation:

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4 years ago