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son4ous [18]
3 years ago
12

Asappp please . Explain

Mathematics
2 answers:
ser-zykov [4K]3 years ago
8 0

Answer: D: 2 1/2

Step-by-step explanation:

LUCKY_DIMON [66]3 years ago
8 0
The answer is D. 5/2 is equal to 2 wholes and a half making it 2 and 1/2
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If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?
yuradex [85]
Y
y=ax
where a is a constant of proportionality;
y=20, x=4
20=4a
a=20/4
a=5
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The constant of variation is 5
3 0
3 years ago
Alex was thinking of a number. Alex doubles it the adds 20 to get answer of 22.7. What was his original number.
erik [133]

Answer:

2.7

Step-by-step explanation:

Let the number alex think be x

Answer = 22.7

According to the question,

x + 20 = 22.7

x = 22.7 - 20

x = 2.7

Therefore, his original number is 2.7

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3 years ago
What is the scale factor in the dilation?
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3 years ago
An angle has a reference angle of 40° and its terminal side lies in Quadrant III. What are a possible positive measure and a neg
Helen [10]

The positive measure is 220° and the negative measure is -140°.

<h3>How to find the measures of the angle?</h3>

First, we know that the reference angle is 40°, and it lies on the third quadrant.

So these 40° are measured from the negative x-axis (the axis where the quadrant starts).

This means that the angle measured in the standard way (from the positive x-axis) measures:

M = 40° + 90° + 90° = 220°.

To find the negative measure, we remember that any angle A is equivalent to:

B = A + n*360°.

Where n is an integer.

If we take n = -1 for our angle, we get:

M' = 220° + (-1)*360° = -140°.

So the positive measure is 220° and the negative measure is -140°.

If you want to learn more about angles:

brainly.com/question/16281260

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7 0
2 years ago
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