Answer:
C.
Step-by-step explanation:
So there are 20 kids with brown hair and this represents 80% of the class total.
So this means 20=.8n since we don't know the total number of kids.
20=.8n
Divide both sides by .8
25=n
So 25 is the total number of kids.
C. is the answer
You could also setup this equation given that 80% is 80/100:
[tex]\frac{20}{\text{ total }}=\frac{80}{100}
To figure out what that total is there you can divide top and bottom of the fraction on right hand side by 4 which gives you the 20 on top and the 25 on bottom.
646.1 / 34; or write as:
________________________
646.1 <span>÷ 34 ,
</span>______________
= 19.0029411764705882. (Use a scientific calculator; or web-based calculator to get that answer).
________________________
Answer:
Step-by-step explanation:
Given
--- a point on the parabola
Required
The equation
First, calculate the equation from the zeros
Substitute and
To solve for k, we substitute
Divide by -4
So, the equation is:
ITS 17 POINTS BUT OKAY
first for number 1 it’s in the graph shape line across !
Answer:
the capacity of doing work is called energy
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