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3 years ago

I need help please it’s in math and it’s just not showing up so I guess no one asked

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

3 0

3.3x10^2+44,000=374000

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lidiya [134]

You would distribute, 300 times 80 is 2400 and -3x times 1x is -3x so the equation would be y=2400-3x

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2 years ago

Six times the sum of a number and twelve is forty. Which equation represents this?

luda_lava [24]

Answer:

6n + 12 =40

Step-by-step explanation:

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3 years ago

Consider this sphere with a diameter of 5 m.

abruzzese [7]

Answer: only C and E

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3 years ago

Read 2 more answers

Simplify the ratio : 72:16:32<br> What is ans

ArbitrLikvidat [17]

Answer:

9 : 2 : 4

Step-by-step explanation:

Given

72 : 16 : 32 ( divide each part of the ratio by 8, the LCM of 72, 16, 32 )

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6 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

3 years ago