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Nitella [24]
2 years ago
15

Calculate the length of a rectangle with:area 35cm² and breadth 50mm​

Mathematics
1 answer:
vesna_86 [32]2 years ago
8 0

Answer:

7mm

Step-by-step explanation:

Area=l*b

35cm²=l*50mm

350mm²/50mm=l

7mm=l

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Two trains leave New York at the same time heading in opposite directions. Train A travels at 4/5 the speed of train one. After
grandymaker [24]
<h3>Answer:  </h3><h3>speed of train A = 44 mph</h3>

=============================================

Work Shown:

x = speed of train A

y = speed of train B

"train A travels 4/5 the speed of train B" (I'm assuming "train one" is supposed to read "train B"). So this means x = (4/5)y

distance = rate*time

d = x*7

d = (4/5)y*7 = (28/5)y represents the distance train A travels

d = y*7 = 7y represents the distance train B travels

summing those distances will give us 693

(28/5)y + 7y = 693

5*(  (28/5)y + 7y ) = 5*693

28y + 35y = 3465

63y = 3465

y = 3465/63

y = 55

Train B's speed is 55 mph

4/5 of that is (4/5)y = (4/5)*55 = 4*11 = 44 mph

Train A's speed is 44 mph

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3 years ago
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balandron [24]

Answer:

I don't know but maybe 3 in a half

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3 years ago
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8 cm<br> 10 cm<br> 3 cm<br> 12 cm<br> Work out the shaded area of the shape?
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Answer:

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