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2 years ago

PLS ANSWER ASAP FIRST ONE TO DO SO GETS BRAINLIEST

Mathematics

1 answer:

ira [324]2 years ago

3 0

Answer:

2600

Step-by-step explanation:

Just simply multiply 130 x 20 because for every sheet it only takes 1/20 of the ream. You should get 2600

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2 years ago

What is the value of x in the equation 1,331x^4-216=0?

yarga [219]

The value of x will be obtained as follows:
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2 years ago

PLEASE HELP!! I will mark the brainliest if you can explain your answer!! I think it’s either b or c..... but I’m not sure!!! Pl

BARSIC [14]

Answer:

A(x) = 6.2 - 0.005x

Step-by-step explanation:

If you think about it, either 0.5/0.005 needs to be equal to 0.5%

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So it must be 0.005!

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3 0

3 years ago

A plane averaged 800 mph on a trip going east, but only 400 mph on the return trip. The total flying time in both directions wa

galina1969 [7]

Answer:

1200 miles.

Step-by-step explanation:

Let d represent one way distance.

We have been given that a plane averaged 800 mph on a trip going east, but only 400 mph on the return trip.

$\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

The time taken while going east would be $\frac{d}{800}$ .

The time taken while returning back would be $\frac{d}{400}$ .

Since the total flying time in both directions was 4.5 hr, so we will equate sum of both times with 4.5 as:

$\frac{d}{800}+\frac{d}{400}=4.5$

Make a common denominator:

$\frac{d}{800}+\frac{d*2}{400*2}=4.5$

$\frac{d}{800}+\frac{2d}{800}=4.5$

$\frac{d+2d}{800}=4.5$

$\frac{3d}{800}=4.5$

$\frac{3d}{800}\times \frac{800}{3}=4.5\times \frac{800}{3}$

$d=1.5\times \frac{800}{1}$

$d=1200$

Therefore, the one-way distance was 1200 miles.

5 0

2 years ago