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Lady_Fox [76]
3 years ago
9

The Lumberjack Hardware store found that 5 out of every 10 paint sprayers they recently received were not properly assembled. If

they received 385 paint sprayers, about how many paint sprayers can they expect to be faulty?
Mathematics
1 answer:
babymother [125]3 years ago
3 0

Answer: 193 faulty paint sprayers

Step-by-step explanation: 5/10 is = to 1/2 so half of them are faulty

next divide 365 by 2 to get 192.5 remember if the decimal is 5 or greater you can round up since you cannot have half a paint sprayer you have to round up to 193 paint sprayers

hope this helps mark me brainliest if it helped

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You need a mean of at least 90 points to advance to the next round of the touch-screen trivia. What score in the fifth game will
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Answer:

At least 98 is needed in the 5th game

Step-by-step explanation:

The missing parameters are:

Game\ 1 = 95

Game\ 2 = 91

Game\ 3 = 77

Game\ 4 =89

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Required

The score in game 5 to make you advance

Mean is calculated as:

Mean = \frac{\sum x}{n}

So, we have:

Mean = \frac{95 + 91 + 77 + 89 + Game\ 5}{5}

Mean = \frac{352 + Game\ 5}{5}

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So, we have:

\frac{352 + Game\ 5}{5} \ge 90

Multiply both sides by 5

5 * \frac{352 + Game\ 5}{5} \ge 90 * 5

352 + Game\ 5 \ge 450

Make Game 5 the subject

Game\ 5 \ge450 - 352

Game\ 5 \ge 98

<em>At least 98 is needed in the 5th game</em>

4 0
3 years ago
Traffic along a stretch of road moves at an average speed that varies inversely with the number of cars on it. When there are 15
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Answer:

37.5 miles per hour

Step-by-step explanation:

The traffic along a stretch road moves at an average speed that carried inversely as the number of cars

Average speed= k/number of cars.

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The first step is to calculate the constant k

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Therefore the average speed when there are 1,800 cars can be calculated as follows

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Hence the average speed is 37.5 moles per hour

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