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3 years ago

Which equation has a constant of proportionality equal to 3? A. y= 8/5 x B. y= 1/3 x C. y= 1/4 x D. y= 18/6 x PLEASE HELP ME :c

Mathematics

1 answer:

denis-greek [22]3 years ago

6 0

Answer:

(D) $y=\frac{18}{6}x$

Step-by-step explanation:

We will be able to know if an equation has a constant of proportionality of 3 if the constant which is being multiplied by x is equal to 3.

$\frac{8}{5} =1.6$ so no for A.

$\frac{1}{3} = 0.\overline{33}$ so no for B too.

$\frac{1}{4} = 0.25$ so no for C as well.

$\frac{18}{6} = 3$ , so D works.

Hope this helped!

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2x + 5y= 18 4x + 20y= -36 Solve and Explain first to get right gets brainliest

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Nimfa-mama [501]

Answer:

a) blue = 1/6

b) white = 2/9

c) green or yellow = 11/18

d) neither blue nor yellow = 1/2

Step-by-step explanation:

First, you have to find the total marbles Maria has in the bag.

5 green + 3 blue + 6 yellow + 4 white = 18 marbles.

To find the probability you can use the formula:

probability = favorable outcomes / total number of possible outcomes

a) For blue

the amount of blue marbles are 3, so the probability is 3/18, simplifying the fraction you get 1/6.

b) For white

the amount of white marbles are 4, so the probability is 4/18, simplifying the fraction you get 2/9.

c) For green or yellow

the amount of green marbles are 5 and the amount of yellow marbles are 6, so the probability is 11/18.

d) neither blue nor yellow

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Nonamiya [84]

Answer and Step-by-step explanation:

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