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Lisa [10]
3 years ago
6

If x varies directly with y and x = 2.5 when y = 10, funny x when y = 16.

Mathematics
1 answer:
amid [387]3 years ago
3 0

Answer:

Should be 4.0(Not sure tho. my thought process is complicated but to me it makes sense)

Step-by-step explanation:

If y=10 and x =2.5, if y were to = 20, then x would equal 5. so you take that ratio, and say 6 is 3/5's the way to 10, so you also divide 2.5 by 3/5

you get 1.5, you add that to x already and you get 4.0

so if y=16, x should =4.0

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4 0
2 years ago
A bag contains 3 red marbles, 2 blue marbles, and 5 green marbles. What is the probability of selecting a red marble, replacing
RUDIKE [14]

Answer:

3/20

Step-by-step explanation:

The total number of marbles is

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We replace the marble so there are still 10 marbles in the bag

P(2nd marble is green) = green marbles/total

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                                   =3/10 *1/2

                                    =3/20

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3 years ago
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