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Airida [17]
3 years ago
14

Write a trinomial expression that is equivalent to (2x+5)(3x-2)

Mathematics
1 answer:
deff fn [24]3 years ago
8 0
2x times 3x is 6x to the second
2x times -2 is -4x
5 times 3x is 15x
-2 times 5 is -10
6x to the second plus 9x minus 10
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Problem Page Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 14
san4es73 [151]

Answer:

The rate of the eastbound train is 68 miles per hour.

Step-by-step explanation:

It is given that two trains leave the station at the same time, one heading east and the other west.

The eastbound train travels 14 miles per hour slower than the westbound train.

Let the rate of westbound train be x and the rate of eastbound train be x-14.

Distance covered by trains in 4 hours,

Westbound train = 4x

Eastbound train = 4(x-14)

The two trains are 600 miles apart after 4 hours.

4x+4(x-14)=600

4x+4x-56=600

Add 56 on both sides.

8x=600+56

8x=656

Divide both sides by 8.

x=82

The rate of westbound train = 82.

The rate of eastbound train = x-14 = 82-14 = 68

Therefore the rate of the eastbound train is 68 miles per hour.

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3 years ago
On a scale 3 cm is 8 miles. If the actual distance is 28 miles, how many cm is this on the scale?
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Answer: 10.5

Step-by-step explanation:

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Answer

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Step-by-step explanation:

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HELP!!!!
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