3 years ago

Please help 8th grade math!

Mathematics

1 answer:

sineoko [7]3 years ago

4 0

9/8 that’s what I got but you can reduce it

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20=7x+4-5x what is x

defon

Combine like terms
20=2x+4

Subtract 4 from both sides
16=2x

Divide both sides by 2
8=x

Final answer: x=8

7 0

3 years ago

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Please help :’).......

Ymorist [56]

The answer is one over thirty two to the seventh power

6 0

3 years ago

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In 1970, a farmer using a two-row combine with a corn head could easily harvest 0.75 ha (1.85 acres) per hour and a typical corn

Anastaziya [24]

Answer:

The value is $w = 6.7 \%$

Step-by-step explanation:

Generally the productivity rate is mathematically represented as

$P_r = K * Z$

Here K is the ha the farmer could harvest in an hour and Z is a typical yield of corn in kg/ha

Now considering 1970

The productivity rate is

$P_r = 0.75 *5000$

=> $P_r = 3750 \ kg/h$

Now considering 1940

The productivity rate is given as $P_R = 250 \ kg/h$

Generally the productivity ratio is mathematically ration is mathematically represented as

$w = \frac{P_R}{P_r} * 100$

=> $w = \frac{250}{3750} * 100$

=> $w = 6.7 \%$

5 0

3 years ago

Which irrational number can be added to pi to get a sum that is rational?

Fofino [41]

The irrational number that can be added to pi to get a rational sum is PI.

3 0

3 years ago

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Convert the mixed number 7 4/7 to a mixed decimal and round the nearest thousand

RideAnS [48]

Using a calculator, you can find out that $\sf{ \frac{4}{7}\approx 0.571428571 \approx.571$

and so that means $\sf{ 7\frac{4}{7}\approx 7.571428571 \approx 7.571$

so your answer is

$\sf{ 7\frac{4}{7} \approx \huge{\boxed{7.571}}$

8 0

3 years ago

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