4 years ago

24. Multiple Choice: Circle the best answer.

Mathematics

1 answer:

Elis [28]4 years ago

5 0

I believe the answer is B

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Find x in this proportion. 5/2x =25/4 x = 2/5 5/2 4/5 8/5

Ymorist [56]

Answer:

2/5

Step-by-step explanation:

make it reciprocal

2x/5 = 4/25

cross multiply the numbers

2x × 25 = 4×5

2x= 20/25

2x= 4/5

x = 2/5

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4 years ago

What is the ratio of 45 to 35

Mademuasel [1]

35/45 = (7 x 5)/(9 x 5) = 7/9

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Triangle HIJ is similar to triangle KLM. Find the measure of side MK. Round your answer to the nearest tenth.

AnnZ [28]

Answer:

$MK\approx 87.7$

Step-by-step explanation:

By definition, similar polygons have corresponding sides in a constant proportion. Therefore, we can set up the following proportion (ratio of corresponding sides) to solve for $MK$ :

$\frac{20}{13}=\frac{MK}{57},\\MK=\frac{57\cdot 20}{13}\approx \boxed{87.7}$

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3 years ago

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7th grade math help me pleaseeee

Eduardwww [97]

Answer:

4x + 5y = 20

Step-by-step explanation:

4x + 5y = 20

5y = -4x + 20 (Subtract 4x to isolate 5y. Put the 4x in front of the 20)

y = $-\frac{4}{5}x$ + 4 (Divide all by 5 to isolate y)

And then it's done and in slope-intercept form

$-1< -\frac{4}{5} < 0$ or $-\frac{4}{5}$ is greater than -1 but less than 0

I hope this helped :)

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3 years ago

If your percentile rank in a group of 500 students is 84, how many persons rank lower than you?

julsineya [31]

If you do 84 x 5 then you have 420 people lower than you

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3 years ago

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