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dsp73
2 years ago
9

A horse has a water barrel in which 3/10 of a gallon is drank out of it every day. How many days will it take the horse to drink

42 gallons of water?
Mathematics
2 answers:
Troyanec [42]2 years ago
8 0

Answer:

140 days

Step-by-step explanation:

xxTIMURxx [149]2 years ago
4 0
140 days


Explanation:

3/10 x 42 would be 40 then times it by 100 to get 140, hope this helps :)
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The price of a sweater was reduced from $20 to $12 by what percentage was the price of the sweater reduced
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Which best describes the relationship among the volumes of hemisphere X, cylinder Y, and cone Z?
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Answer: I saw on another post on here with the same question that someone said it was

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6 0
3 years ago
You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the
Vedmedyk [2.9K]

Answer:

416025

Step-by-step explanation:

For confidence interval of 99%, the range is (0.005, 0.995). Using a z-table, the z-score for 0.995 is 2.58.

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\\ n = \left(\frac{\texttt{z-score}}{\texttt{margin of error}} \right )^2\cdot p\cdot (1-p) \\ = \left(\frac{2.58}{0.002} \right )^2\cdot 0.5\cdot (1-0.5)=416025

So, sample size required is 416025.

4 0
3 years ago
Please help quickly as possible please
zheka24 [161]
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7 0
3 years ago
Write and simplify an expression to model the following phrase: "15% off the original price of a purchase"
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There are a couple of equations u can use

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x - 0.15x

OR

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7 0
3 years ago
Read 2 more answers
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