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mafiozo [28]
3 years ago
7

(a) One ball is selected at random from the bag.

Mathematics
1 answer:
lana [24]3 years ago
3 0

Answer:

a) The probability is 1/5

bi) The probability each ball is even will be 2/5

bii) The probability the sum of the numbers on the ball is not more than 10 is 16/25

(that's what I think it is)

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Adrian is a songwriter who collects royalties on his songs whenever they are played in a commercial or a movie. Adrian will earn
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Answer:

Step-by-step explanation:

Let number of songs are played in a commercial be a

     number of songs are played in a movie be b

Adrian earned a total of $1010 -> a*40 + b*130 = 1010  (1)

14 commercials and movies -> a+b = 14                          (2)

(1) - (2)*40 =  a*40 + b*130 - a*40 -b*40 = 1010 -14*40

-> b*90 = 450

-> b = 5

-> a = 14-5 = 9

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3 years ago
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A student has gotten the following grades on his tests: 87, 95, 76, and 88. He wants an 85 or better overall. What is the minimu
Hoochie [10]

Answer:

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Step-by-step explanation:

4 0
3 years ago
The table below shows the relationship between the number of calories burned and the minutes of exercise.
sergejj [24]

Answer:

Option B

Step-by-step explanation:

Since, number of calories 'C' burned is proportional to the number of minutes (m) given to the exercise,

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C = km

Where k is the proportionality constant.

From the table attached,

For C = 250 calories and m = 30 minutes,

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k = \frac{250}{30}

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Therefore, equation representing this situation will be,

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Option B will be the correct option.

5 0
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Simplify the expression 3+2^2 / 2+3
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