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2 years ago

9

In a 3-digit number, the hundreds digit is one more than the one's digit, and the tens digit is twice the hundreds digit. If the

sum of the digits is 11, find the number. PLEASE TELL ME THE CORRECT EQUATION!

1 answer:

arsen [322]2 years ago

8 0

3 digits
Sum (adding) = 11
362

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Answer:

$x=\frac{18000}{7}=2571\frac{3}{7}$

Step-by-step explanation:

Let the total amount be x

Then Ali got 1/8x With 7/8x left

Juma got 7/40x with 7/10x left

Musa, Khalid and Mustafa got 7/30x each

since $\frac{7}{30}x=600$

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1 year ago

Cos (90-theta) • cosec90-theta) =tano. How?

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Answer:

<u>______________________________________________________</u>

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For any right angled triangle with one angle α ,

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$cosec \: (90 - \alpha ) = \sec\alpha$ or $\sec(90 - \alpha ) = cosec\:\alpha$

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Now , lets come to the question.

In a right angled triangle , let one angle be α (in place of theta) .

So , lets solve L.H.S.

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2 years ago

p varies jointly as q and the square of r, and p = 200 when q = 2 and r = 3. Find p when q = 5 and r= 2.

Margarita [4]

Step-by-step explanation:

If a variables varies jointly, we can just divide it by the other variables in relation to it.

For example, since p variables jointly as q and square of r, then

$\frac{p}{q {r}^{2} } = k$

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$\frac{200}{2(3) {}^{2} } = k$

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Answer:

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Step-by-step explanation:

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The answer is 7.44 or A)7.44

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3 years ago

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