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2 years ago

Evaluate the expression and enter the answer as a fraction in lowest terms, using the slash (/) for the fraction bar.

Mathematics

1 answer:

Naya [18.7K]2 years ago

8 0

Answer:

5/21

Step-by-step explanation:

Change division sign to multiplication and flip second fraction upside down

1/3 x 5/7 = 5/21

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If michael family has 210 acres and each cow take 1/3 acre of grazing how many cattle could their farmland support

tigry1 [53]

To find the answer,we can divide the arches(210) bythe amount a cattle need( 1/3):

210÷1/3
=210×3
=630

Therefore, the farmland could support 630 cattles.

Hope it helps!

7 0

3 years ago

1. A farmer estimates her hens will produce

a_sh-v [17]

Answer:

Expected profit per dozen eggs = 4 ¢

Expected profit on the total egg production = 60,000 ¢

Step-by-step explanation:

Complete table as obtained online

Net Profit | 8 | 6 | 4 | 2 | 0 | -2

Probability |0.1|0.4|0.2|0.1|0.1|0.1

a) Expected profit per dozen eggs

Expected value is given as

E(X) = Σ xᵢpᵢ

xᵢ = each variable

pᵢ = probability of each variable

E(X) = (8×0.1) + (6×0.4) + (4×0.2) + (2×0.1) + (0×0.1) + (-2×0.1) = 4 ¢ per dozen

b) Expected profit on the total egg production

Last year, she had 12,000 dozen eggs

This year, she estimates 3,000 dozen more eggs

Estimated Total egg production this year = 12000 + 3000 = 15,000 dozen eggs

Expected profit per dozen eggs = 4 ¢

Expected profit on 15,000 dozen eggs = 15000 × 4 = 60,000 ¢

Hope this Helps!!!!

5 0

4 years ago

A poll was conducted by a home mortgage company regarding home ownership in the United States. The company polled 1,488 American

____ [38]

If the sample size is 1488 and confidence interval of 99% then the margin of error is 0.03088.

Given sample size of 1488, percentage of those polled own a home be 69% and confidence level be 99%.

We are required to find the approximate margin of error.

Margin of error is the difference between calculated values and real values.

n=1488

p=0.69

Margin of error=z* $\sqrt{p(1-p)/n}$

Z score when confidence level is 99%=2.576.

Margin of error=2.576* $\sqrt{0.69(1-0.69)/1488}$

=2.576* $\sqrt{(0.69*0.31)/1488}$

=2.576* $\sqrt{0.2139/1488}$

=2.576* $\sqrt{0.0001437}$

=2.576*0.01198

=0.03088

Hence if the sample size is 1488 and confidence interval of 99% then the margin of error is 0.03088.

Learn more about margin of error at brainly.com/question/10218601

#SPJ1

3 0

2 years ago

Can someone help me on problem 2<br> Please ?

Elza [17]

Answer:

x=48

Step-by-step explanation:

48/4=12

please mark brainiest

thank you

7 0

3 years ago

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Triangle XYZ is rotated 90° counterclockwise using the origin as the center of rotation.

lina2011 [118]

Answer:

im pretty sure its 270 clockwise.

Step-by-step explanation:

8 0

3 years ago

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