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3 years ago

there are 121 boys in the seventh grade this is 52.5% of the total students in the grade how many students are in 7th grade

1 answer:

4 0

52.5 divide by 121 is .43, so that means each person represents .43% of the 7th grade population. so by multiplying 231 by .43 you get 100%. the number of students in 7th grade is 231

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3 years ago

Evaluate using suitable identity:<br>e). 102 × 98

chubhunter [2.5K]

Step-by-step explanation:

<h3><u>★ Solution :-</u></h3>

$\sf \longmapsto 102 \times 98$

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Here,

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3 years ago

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Answer:

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Step-by-step explanation:

You use the Pitagora's theorem to calculate the diagonals of the figure.

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4 years ago

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4 years ago

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Answer with explanation:

The average rate of change in a function f(x) from x=a to x=b is given by :-

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

For Section A .

The average rate of change in a function h(x)=4x from x=0 to x=1 is given by :-

$k=\dfrac{h(1)-h(0)}{1-0}\\\\=\dfrac{4-0}{1}=4$

For section B .

The average rate of change in a function h(x)=4x from x=2 to x=3 is given by :-

$k=\dfrac{h(3)-h(2)}{3-2}\\\\=\dfrac{12-8}{1}=4$

The average rate of section A is same for section B because the function is a linear function, and the rate of change of a linear function is constant.

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3 years ago