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Alekssandra [29.7K]
3 years ago
8

A company makes cars at two factories. Some of the cars need repairs in the first year and some do not. This two-way frequency t

able shows the proportion of cars at each factory that need repairs or do not need repairs in the first year. Need repairs in first year Do not need repairs in first year Factory A 0.05 0.95 Factory B 0.02 0.98
Mathematics
1 answer:
Lerok [7]3 years ago
4 0
From the four answers two are correct.
A. Compared to Factory A, B has a larger percentage of cars that do not need repairs.
B. Among cars from factory A, a larger percentage of cars do not need repairs than do need repairs in the first year
Both of these answers are indeed correct.
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Burka [1]
The answer to your question is 7
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3 years ago
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Find the sum and difference (first mixed number minus the second mixed number) for the following pair of mixed numbers. The answ
xz_007 [3.2K]

Answer:

Sum = 15 8/15, Difference = 1 2/15

Step-by-step explanation:

8⅓, 71/5

A. Sum

8⅓ + 7 1/5

Convert to improper fraction

25/3 + 36/5

Find the LCM of 3 and 5. The result is 15. Divide 15 by the denominator of each fraction and multiply the result obtained with the numerator. The result is shown below:

[(25×5) + (36×3)] / 15

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233 / 15

Convert to mixed fraction

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B. Difference

8⅓ – 7 1/5

Convert to improper fraction

25/3 – 36/5

Find the LCM of 3 and 5. The result is 15. Divide 15 by the denominator of each fraction and multiply the result obtained with the numerator. The result is shown below:

[(25×5) – (36×3)] / 15

[125 – 108] / 15

17 / 15

Convert to mixed fraction

1 2/15

SUMMARY:

Sum = 15 8/15, Difference = 1 2/15

3 0
3 years ago
How do you start this
lidiya [134]
You have two equations.
since the second is already isolated, sub in x-4 for every y in equation 1 so that 
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Step-by-step explanation:

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Find the surface area of a 7.4 cm long iron rod and 3.1 m radius
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Answer:

144.2 cm

Step-by-step explanation:

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Therefore the surface area can be calculated as follows

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= 2×3.142×3.1×7.4

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Hence the surface area is 144.2cm

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2 years ago
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