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3 years ago

The mean weight of females in a class is 60kg and that of the males is 72kg. If the mean

Mathematics

1 answer:

zimovet [89]3 years ago

5 0

Answer:

1:2

Step-by-step explanation:

Let's say there are x males and y females in the class.

The sum of all male weights will be 72x, and the sum of all female weights will be 60y.

If we get a class mean weight, we have:

(72x + 60y) / (x+y) = 68

72x + 60y = 68x + 68y

4x = 8y

y / x = 4/8 = 1/2

So the ratio of females to males is the class is 1:2

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Answer and Step-by-step explanation:

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2 $\pi$ r

Plug in 1 for r.

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Now, multiply the answer (the circumference) by 4 to get the perimeter of the square.

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2 years ago

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ArbitrLikvidat [17]

Answer:

12x+3 / 4x

Step-by-step explanation:

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3 years ago

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Vitek1552 [10]

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3 years ago

The function y = f(x) is graphed below. What is the average rate of change of the

Serjik [45]

The average rate of change of the function in the given interval -3 ≤ x ≤-1 is 10.

<h3>What is the average rate of change?</h3>

The average Rate of Change of the function f(x) can be calculated as;

$f(x) = \dfrac{f(b) - f(a)}{b-a}$

Interval -3 ≤ x ≤-1

a = -3, b = -1

f(a) = f(-3) = -20

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Step 2: Find Average

$f(x) = \dfrac{f(b) - f(a)}{b-a}\\\\\\f(x) = \dfrac{f(-1) - f(-3)}{-1-(-3)}\\\\\\f(x) = \dfrac{0 - (-20)}{2}\\\\f(x) = 10$

Therefore, the average rate of change of the function in the given interval -3 ≤ x ≤-1 is 10.

Learn more about average rate;

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1 year ago

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IgorC [24]

Answer:

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Step-by-step explanation:

if each square is a whole, then when one is filled, it's 100% . 10% of the other square is filled so you just add the two.

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