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earnstyle [38]
3 years ago
7

You paint 13 1 3 of a wall in 14 1 4 hour. At that rate, how long will it take you to paint one wall?

Mathematics
2 answers:
lawyer [7]3 years ago
5 0

Answer:

the answer is 3/4 hrs

Step-by-step explanation:

Lady bird [3.3K]3 years ago
4 0

Find the rate at which you work, that is, the # of walls painted per hour:

13 1/3 walls          40/3

------------------  = ---------- wall per hour

14 1/4 hr              57/4

Keep 40/3 as it is; invert the divisor (57/4) and then multiply the result by 40/3:

40        4        160 wall

------ * ------  = --------------- = approx. 0.94 wall in one hour, or 160/171 wall / hr

  3       57        171 hr

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Answer:

A) H0: μ = 11 vs. Ha: μ > 11

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

Therefore, for the case above;

The null hypothesis is that the average number of headaches per student during a semester of Statistics is 11.

H0: μ = 11

The alternative hypothesis is that the average number of headaches per student during a semester of Statistics is greater than 11.

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4 years ago
Shawn wants to use an elevator to carry identical packages having the same weight. Each package weighs 5 pounds and Shawn weighs
Morgarella [4.7K]

Answer:

n is less than or equal to 48.

Step-by-step explanation:

He weighs 100 lbs.

So: 340 - 100 = 240 - remaining weight for packages.

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6 0
3 years ago
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Answer:

1,4,7,10,13,16,19,22

Step-by-step explanation:

apparently it is adding 3 every row

6 0
3 years ago
HELP ME IS THE LAST ONE! Ty
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