3 years ago

A school has 2 boys for every 3 girls in the 7th grade. There are 120 students. How many girls and boys are there?

Mathematics

2 answers:

Helen [10]3 years ago

8 0

Their is 48 boys and their os 72 girls

Vinvika [58]3 years ago

7 0

48 boys and 72 girls

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miv72 [106K]

Answer:

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Step-by-step explanation:

$\left|\begin{array}{c|cc}X&f(X)=X^2+7\\--&-----\\2&11\\3&16\\4&23\\5&32\\6&43\end{array}\right|$

(1)The average rate of change between x=2 and x=5

$\dfrac{dy}{dx} =\dfrac{f(5)-f(2)}{5-2} =\dfrac{32-11}{3} =\dfrac{21}{3} =7$

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$\dfrac{dy}{dx} =\dfrac{f(4)-f(2)}{4-2} =\dfrac{23-11}{2} =\dfrac{12}{2} =6$

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3 years ago

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2 years ago

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y=12 is false answer.

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