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Aleks [24]
3 years ago
13

Gordon was thinking of a number. Gordon doubles it and gets an answer of 90.8. What was the original number?

Mathematics
1 answer:
zalisa [80]3 years ago
8 0

Answer:

45.4

Step-by-step explanation:

Nx2=90.8

Divide both sides by 2

N=45.4

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28% of 80 is what number?<br> a. 22.4<br> b. 2.24<br> c. 224<br> d. 24.4
Ratling [72]
X = 28% * 80

x = 28/100 * 80

x = 28/10 * 8

x = 2.8 * 8

x = 22.4


28% of 80 is 22.4.

Your final name is a. 22.4
8 0
3 years ago
Read 2 more answers
Two circles are concentric if they have the same center.
vaieri [72.5K]

The equation of the circle is (x - 4)² + (y - 6)² = 16. The correct option is the second option (x - 4)² + (y - 6)² = 16

<h3>Equation of a circle </h3>

From the question, we are to determine the equation of the circle

The equation of circle is given by

(x - h)² + (y - k)² = r²

Where (h, k) is the center

and r is the radius

From the given information,

The two circles are concentric

∴ (h , k) = (4, 6)

But the other circle has a radius that is twice as large

∴ r = 2 × 2

r = 4

Thus,

The equation of the circle becomes

(x - 4)² + (y - 6)² = 4²

(x - 4)² + (y - 6)² = 16

Hence, the equation which represents a circle that is concentric with the circle shown but has a radius that is twice as large is (x - 4)² + (y - 6)² = 16. The correct option is the second option (x - 4)² + (y - 6)² = 16

Learn more on Equation of a circle here: brainly.com/question/1506955

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8 0
2 years ago
Create an equation that describes the greatest horizontal length, H, in terms of greatest vertical length v
Sedbober [7]

The question illustrates a linear equation, and the equation that represents the greatest horizontal height is H = 2V + 3

<h3>How to determine the equation?</h3>

From the complete question, we have the following highlights:

The greatest horizontal height is three more than twice the greatest vertical length.

This means that:

H = 2 * V + 3

Evaluate the product

H = 2V + 3

Hence, the equation that represents the greatest horizontal height is H = 2V + 3

Read more about linear equation at:

brainly.com/question/14323743

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5 0
2 years ago
3. Twice the sum of 10 and a number is 28. Find the number.
inysia [295]

Answer:

4

Step-by-step explanation:

The equation is 2(10+x)=28 where x is the unknown number we are trying to find. Use distrubutive property to combine like terms. 2 times 10 is 20 and 2 times x is 2x. Now we have 20+2x = 28. What you do to one side you must do to the other. 20 minus 20 is 0. 28 minus 20 is 8. Now our equation is 2x is 8. To find 1 x we divided in half. 8/2 is 4 therefore the missing variable is 4.

7 0
2 years ago
7/4 Times 7/3 What Is The Sum
Dennis_Churaev [7]

Answer:

49/12 4 1/12

Step-by-step explanation:

Step 1: 7/4+7/3

4×3=12

Step 2:

3 ×7=21

4×7=28

Step 3:

21/12+28/12

21 +28=49

49/12

Step 4:

Simplify

49/12= 4 1/12

7 0
2 years ago
Read 2 more answers
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