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soldier1979 [14.2K]
2 years ago
13

If a mechanic takes 4 hours to complete 8 car inspections, at what rate are the cars being inspected?

Mathematics
2 answers:
Marta_Voda [28]2 years ago
8 0

<em>1 car per 30 minutes.</em>

Ghella [55]2 years ago
3 0

Answer:

The answer is 1 car per 30 minutes

Step-by-step explanation:

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. Osteen has 32 marbles in his collection. 18 of his marbles are red, four are blue, and the rest are
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Answer: B

Explanation:  

32 marbles in total.

18 red marbles

4 blue marbles

10 green marbles.

You are asked what part of Osteen's marbles are red?

Probability = number of possible outcomes/total number of out outcomes.

P(Red) = 18/32 = 9/16

Both, 18 and 32 are divisible by 2 which gives 9/16. Since 9/16 cannot be reduced any further, we live it as it is. If you wanted to plug this into a calculator that would give 0.5625 which is 56.25% of Osteen's marbles are red.

P(Blue) = 4/32 = 1/8. 1/8 = 0.125 which 12.5% of his marbles are blue.

P(Green) = 10/32 = 5/16. 5/16= 0.3125 which 31.25 of his marbles are green. When you add 0.5625 + 0.125 + 0.3125 = 1 which is 100%. All probabilities add up to 1.

Hope this elaborate explanation helps.

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2 years ago
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First to find the average, you have to combine all the numbers

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Then you have to divide the total, with the number of numbers used to combine to make the total

-7 ÷ 7 = -1

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