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3 years ago

I am a multiple of 30 if you round me to the nearest hundred you get 400 what number could I be?

Mathematics

2 answers:

Anvisha [2.4K]3 years ago

5 0

390 should be the correct answer

11Alexandr11 [23.1K]3 years ago

3 0

It is a multiple of 30 so it could be 30 × 12= 360, 30 × 13 =390

All these are multiple of 30 and if we round it to the nearest hundred it will be 400 so 360, 390 is your answer.

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7/8 = ?/48 A.13 B. 1 C. 42 D. 6

Ugo [173]

Hi Brainiac

7/8 =?/48

Let's replace the unknown place by x

7/8 = x/48

Cross multiply

(7)(48)= (X)(8)

336 = 8x

Flip it

8x = 336

Divide both sides by 8

8x/8 = 336/8

x= 42

The answer is C

Now if you wanna see if the answer is good just replace 42 in blank space

7/8 = 42/48

Now didivde 7 by 8 and divide 42 by 48

7/8= 0.875

42/48= 0.875

The answer C is correct

I hope that's help:)

If you have questions please let me know :)

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