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Anna35 [415]
3 years ago
10

Do the ratios 15 20 and 3 4 form a proportion?

Mathematics
1 answer:
aliya0001 [1]3 years ago
8 0

Answer:

Test the two ratios/fractions to see whether they are equivalent by multiplying diagonally (cross multiply). 3 4 = 15 20 4 * 15 = 60 and 3 * 20 = 60.

<em><u>This is a proportion. If the two numbers that are diagonal result in the same answer when they are multiplied, you are working with a proportion.</u></em>

Step-by-step explanation:

<h2>#BEBRAINLY </h2>
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625 cm3

Step-by-step explanation:

Formula V1 * P1 = V2 * P2

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Step-by-step explanation:

x^2+(y-k)^2=36

y=5x+k

Substituting y in the first equation

x^2+(5x+k-k)^2=36\\\Rightarrow x^2+25x^2=36\\\Rightarrow 26x^2=36\\\Rightarrow x^2=\frac{36}{26}\\\Rightarrow x=\sqrt{\frac{36}{26}}\\\Rightarrow x=\pm 1.17

At x = 1.17

y=5\times 1.17+k\\\Rightarrow y=5.85+k

At x = -1.17

y=5\times -1.17+k\\\Rightarrow y=-5.85+k

The intersection points are (1.17, 5.85k) and (-1.17, -5.85k)

The graph would intersect regardless of what value k is.

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Answer:

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Step-by-step explanation:

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Read 2 more answers
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