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slava [35]
3 years ago
10

Caroline is planting flowers in her garden. She plans her first seven flowers in four minutes. After 12 minutes, she has planted

21 different flowers. Which equation represents this direct variation?
Mathematics
2 answers:
ElenaW [278]3 years ago
5 0
21=f1 I am going out of
Karolina [17]3 years ago
3 0

Answer:

21f=12m

Step-by-step explanation:

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2 years ago
Which pairs of points would result in a line with a rate of change of 2:1? select all that apply
Reil [10]

Answer:

A,C,D

Step-by-step explanation:

Complete Question:

<em>"Which pairs of points would result in a line with a rate of change of 2:1? select all that apply"</em>

<em>A.(−4,−11) and (−2−7) </em>

<em>B.(5,6) and (−5, 12) </em>

<em>C.(0,−3)and (−4,−11) </em>

<em>D. (0,−3) and (5, 7)</em>

<em />

Rate of change is the slope. 2:1 would mean a slope of simply, 2.

We need to find slope of each of the choices from A - D and see which one has 2. The formula would be:

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

Where m is the slope and

x_1 is first x point

x_2 is second x point

y_1 is first y point

y_2 is second y point

Let's calculate slope of each of the choices.

A.

m=\frac{y_2-y_1}{x_2-x_1}\\m=\frac{-7+11}{-2+4}\\m=2

THis one is okay.

B.

m=\frac{y_2-y_1}{x_2-x_1}\\m=\frac{12-6}{-5-5}\\m=-\frac{3}{5}

THis one is not 2:1.

C.

m=\frac{y_2-y_1}{x_2-x_1}\\m=\frac{-11+3}{-4-0}\\m=2

THis one is okay.

D.

m=\frac{y_2-y_1}{x_2-x_1}\\m=\frac{7+3}{5-0}\\m=2

This one is okay.

Hence, A, C, and D all have rate of change of 2:1

4 0
3 years ago
Write an equation in point-slope form for the line that passes through the point with the given slope. (-5, -8), m = -2
Arada [10]

Answer:

Y= -2x - 18

Step-by-step explanation:

Hope it works

4 0
2 years ago
What expression can be used to find 38 percent of 22
Oksanka [162]

The butterfly method. Multiply then divide

5 0
3 years ago
Read 2 more answers
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