2 years ago

If an average grade of an English class rise from 70 to 85 what is the approximate percent increase

Mathematics

1 answer:

lakkis [162]2 years ago

7 0

Answer:

21.4%

Step-by-step explanation:

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Use the distributive to simplify: 3{4x - 10}

liraira [26]

12x-30 would be the accurate answer

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2 years ago

Can somebody explain this to

beks73 [17]

Check the picture below.

$slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} x_1=0\\ x_2=2 \end{cases}\implies \cfrac{f(x_2)-f(x_1)}{2-0}\implies \cfrac{0~~ - ~~1}{2}\implies -\cfrac{1}{2}$