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3 years ago

Do the ratios 2/1 and 16/8 form a proportion?

Mathematics

2 answers:

Dmitry [639]3 years ago

5 0

Yes, it does form a proportion

satela [25.4K]3 years ago

4 0

Answer:

Yes, it does. A way to confirm this is you can divide 16/8 which is 2 and 2/1 which is also 2 to get your answer.

Step-by-step explanation:

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B is the midpoint of AC. What is the length of AB? AB is 9x+7 and BC is -3x+20

ahrayia [7]

<h3>Answer:</h3>

$AB = \frac{67}{4}\\$

<h3>Step-by-step explanation:</h3>

If $B$ is the midpoint of $\overline{AC}$ then $AB$ is just half of $AC$ and also, $BC$ is just half of $AC$ . This means that $AB$ must be equal to $BC$ . Essentially, $9x +7 = -3x +20$ and we can solve for the of $x$ from that equation.

$9x +7 = -3x +20 \\ 9x +7 +3x = -3x +20 +3x \\ 12x +7 = 20 \\ 12x +7 -7 = 20 -7 \\ 12x = 13 \\ \frac{12x}{12} = \frac{13}{12} \\ x = \frac{13}{12}$

Now we can solve for $AB$

$AB = 9(\frac{13}{12}) +7 \\ AB = 3(\frac{13}{4}) +7 \\ AB = \frac{39}{4} +7 \\ AB = \frac{39}{4} +\frac{28}{4} \\ AB = \frac{67}{4}$

8 0

3 years ago

Select the equivalent expression. Thanks :)

Umnica [9.8K]

Answer:

Step-by-step explanation:

(y^3 * 2^5)^2

3x2=6

5x2=10

y6x2^10

6 0

3 years ago

A furniture store decided to mark up the price of a kitchen table. They decided to increase the price to $84. The original price

cupoosta [38]

Answer:

40%

Step-by-step explanation:

It would be 40% percent because when you divide 84 by 60 you would get 1.4. The 1 is the price staying the same. The .4 is the precentage. You would get 40% by moving the decimal to the right of the number

3 0

3 years ago

1 over 4 minus 1 over 8

fgiga [73]

I hope this helps you

1^4-1^8

1-1

0

8 0

3 years ago

if a 28ft rope is cut into two sections with one section 3 times as long as the other section, how long is the shorter one?

Eddi Din [679]

Let one section be x ft long and the other one be 3x. Then 4x=28, and x=7.

The shorter section will have length 7.

3 0

3 years ago