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Fed [463]
3 years ago
7

25 kids took a math test. If 20 kids passed the test, what percent of kids did not pass the test?

Mathematics
2 answers:
oksian1 [2.3K]3 years ago
7 0

Answer:

20%

Step-by-step explanation:

If 20 kids passed, that means 5 did not. 5/20 is 0.2. Write that in percentage is 20%.

nata0808 [166]3 years ago
4 0

Answer: 20%

Step-by-step explanation:

25 = 100%

25/5 = 5

100/5 = 20

That means 80% passed and 20% didnt.

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Responses which are acquired after birth are called _____ responses.
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Answer:

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3 years ago
Can somebody please help me?
9966 [12]

28+28+28= 84

28 x 28 x 28 = 21952

hope it helps!:)

4 0
2 years ago
Indicate the equation of the line that is the perpendicular bisector of the segment with endpoints (4, 1) and (2, -5).
PtichkaEL [24]
Okay to find the perpendicular bisector of a segment you first need to find the slope of the reference segment.

m=(y2-y1)/(x2-x1) in this case:

m=(-5-1)/(2-4)

m=-6/-2

m=3

Now for the the bisector line to be perpendicular its slope must be the negative reciprocal of the reference segment, mathematically:

m1*m2=-1  in this case:

3m=-1

m=-1/3

So now we know that the slope is -1/3 we need to find the midpoint of the line segment that we are bisecting.  The midpoint is simply the average of the coordinates of the endpoints, mathematically:

mp=((x1+x2)/2, (y1+y2)/2), in this case:

mp=((4+2)/2, (1-5)/2)

mp=(6/2, -4/2)

mp=(3,-2)

So our bisector must pass through the midpoint, or (3,-2) and have a slope of -1/3 so we can say:

y=mx+b, where m=slope and b=y-intercept, and given what we know:

-2=(-1/3)3+b

-2=-3/3+b

-2=-1+b

-1=b

So now we have the complete equation of the perpendicular bisector...

y=-x/3-1 or more neatly in my opinion :P

y=(-x-3)/3
4 0
3 years ago
Read 2 more answers
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Blizzard [7]

ANSWER

My answer is in the photo above

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3 years ago
The speedy punt returner and the ferocious defensive player are headed straight toward each other. The punt returner is travelin
Svetach [21]

Answer:

2

Step-by-step explanation:

15+12=27

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3 years ago
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