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Liono4ka [1.6K]
3 years ago
12

A bag contains 10 black marbles and 6 red marbles. If a red

Mathematics
1 answer:
bonufazy [111]3 years ago
7 0

Answer:

66.67% probability of selecting a black marble from the bag.

Step-by-step explanation:

Initially there are 16 marbles, 10 of which are black and 6 of which are red.

A red marble is drawn and not put back. So now there are 15 marbles, of which 10 are black.

So there is a 10/15 = 2/3 = 0.666% 7 = 66.67% probability of selecting a black marble from the bag.

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Answer:

Width of 6ft and length of 9ft

Step-by-step explanation:

The sandbox has a ratio of 2:3. If you plug the numbers in with the ratio, you can find the actual dimensions.

Let x be the length

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(Length)

2in / 3ft = 6in / (x)ft

2in / 3ft = 6in / <u><em>9ft </em></u>

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strojnjashka [21]

Answer:

10y - 3

Step-by-step explanation:

Write "10y minus 3" symbolically:  10y - 3

5 0
3 years ago
Read 2 more answers
Hazel wants to mix 12 pounds of her special blend coffee that will cost her $12.50 per pound. She uses Columbian and Sumatra cof
k0ka [10]
Let x be the amount of Columbian coffee in the mixture and y the amount of Sumatra coffee in the mixture, then
x + y = 1 . . . (1)
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(1) x 9.25 => 9.25x + 9.25y = 9.25 . . . (3)

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From (1), x + 0.65 = 1 => x = 1 - 0.65 = 0.35

1 pound of the mixture contains 0.35 Columbian coffee and 0.65 Sumatra coffee
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3 years ago
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Answer:

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Step-by-step explanation:

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the unknown angle is 180-90-38=52 degrees

8 0
3 years ago
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