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qwelly [4]
3 years ago
15

Ms.Jones mowed 1/4 of her lawn. Her son mowed 3/7 of it. Who mowed most of the lawn? How much of the lawn still needs to be mowe

d?
Mathematics
2 answers:
sleet_krkn [62]3 years ago
4 0

Answer:

Her son mowed more of the yard than Ms. Jones did.

32 percent of the yard still needs to be mowed.

Step-by-step explanation:

Find the LGM of 1/4 and 3/7 - that is 28

1/4 to 7/28 and 3/7 to 12/28

3/7 is more than 1/4

Her son mowed 43% of the yard or 7/28 of the yard or 1/4 of the yard.

Ms. Jones mowed 25% of the yard or 12/28 of the yard or 3/7 of the yard.

Together they mowed 68% of the yard or 19/28 of the yard.

They still have 32% of the yard left to mow, or 9/28 of the yard left to mow.

Lubov Fominskaja [6]3 years ago
3 0

Answer:

Step-by-step explanation:

Ms.Jones mowed 1/4 of her lawn. Her son mowed 3/7 of it. Who mowed most of the lawn? How much of the lawn still needs to be mowed?

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Answer:

The answer is explained below

Step-by-step explanation:

Given that:

mean (μ) = 7 and standard deviation (σ) = 1.5.

The z score is used in statistic used to measure the number of standard deviation by which the raw score is above or below the mean value. It is given by:

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To find the Probability that x < 8.8, we first find the z score using:

z = \frac{x-\mu}{\sigma}=\frac{8.8-7}{1.5}=1.2

From the z tables, P(x < 8.8) = P(z < 1.2) = 0.8849 = 88.49%

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mojhsa [17]

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Step-by-step explanation:

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Answer:

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