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slamgirl [31]
3 years ago
10

Combine like terms to create an equivalent expression. 20(−1.5r+0.75)20(-1.5r+0.75)20(−1.5r+0.75)20, left parenthesis, minus, 1,

point, 5, r, plus, 0, point, 75, right parenthesis
Mathematics
2 answers:
Lina20 [59]3 years ago
8 0

Answer:

-30r+15

Step-by-step explanation:

I got it right on khan academy

ASHA 777 [7]3 years ago
7 0

Answer:

The combined like terms to create an equivalent expression 20(-1.5r+0.75) is -30r + 15.

Step-by-step explanation:

Consider the provided expression:

20(-1.5r+0.75)

Use the distributive property: a(b + c) = ab + bc

-30r + 15

After using distribution property there are no more like terms. Thus, -30r + 15 is the simplest form.

Hence, the combined like terms to create an equivalent expression 20(-1.5r+0.75) is -30r + 15.

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A garden is designed in the shape of a rhombus formed from 4 identical 30°-60°-90° triangles. The shorter distance across the mi
EleoNora [17]

Answer:

c) 120 ft

Step-by-step explanation:

Let's consider the rhombus has 4 sides, A, B, C, and D.

To find the length of each side, let's first find the length AE.

From the diagram, AE is half of AC and AC = 30 ft.

Therefore,

AE = ½ * 30

AE = 15 ft

Let's find the length AD, since we are looking for the distance around the perimeter.

AD = \frac{15}{sin30} = \frac{15}{0.5} = 30 ft

We are told the rhombus is formed by four identical triangles.

Therefore the distance around the perimeter would be: AD+AD+AD+AD=

30 ft + 30 ft + 30 ft + 30 ft

= 120 ft

The distance around the perimeter of the garden is 120 ft

8 0
3 years ago
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3. Two numbers are in the ratio 3:5. If their difference is 12, what are the numbers?​
vladimir2022 [97]
I got 18 and 30 for my answer
8 0
3 years ago
PART 3 OF ME ASKING FOR HELP
e-lub [12.9K]

Answer:

c

Step-by-step explanation:

7 0
2 years ago
Given the points A(3, 1), B(6, y) and C(12, -2) find the value(s) of y if…
Musya8 [376]

Answer:

B. The lines AB and BC are perpendicular.

Step-by-step explanation:

If all the points are doubled on the x-axis, they are perpendicular.

hope this helps.

8 0
2 years ago
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Problem 3
Murljashka [212]

Answer:

-\frac{2}{5}

Step-by-step explanation:

Given expression:

           2x + 5y = -10

The equation of a straight line is;

            y = mx + c

y and x are the coordinates

m is the slope

c is the intercept

 Now;

          let us write the given expression in slope intercept format;

            2x + 5y  = -10

                    5y = -2x - 10

                     y = -\frac{2x}{5}  - 2

So, the slope of the line is -\frac{2}{5}

8 0
2 years ago
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