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Korolek [52]
2 years ago
6

Is 9 correct if now what is it?

Mathematics
1 answer:
Alex787 [66]2 years ago
3 0

Answer:

4 + 5 = 9

girls: 4/9 (680)

boys 5/9  (850)

total 1530

there are 850 boys and 680 girls.

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What is the image of ( 0 , -6 ) after a reflection over the line y = x?
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Answer:

(-6, 0)

Step-by-step explanation:

(x, y) over y=x = (y, x)

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X + 25/-8 = -6 Solve for x.<br> Simplify your answer as much as possible.
balandron [24]

Step-by-step explanation:

if there is nothing missing, we have

x + 25/-8 = -6

in order to compare or add or subtract fractions, we need to bring them all to the same denominator (bottom part).

remember, integer numbers are fractions too. like here

-6 = -6/1

25/-8 = -25/8

so, how can we bring -6/1 to .../8 ?

by multiplying 1 by 8.

but we cannot multiply only the denominator by 8. otherwise we would suddenly have

-6/8

and is -6/8 = -6/1 ? no, certainly not.

to keep the original value of the fraction we have to do the same multiplication also with the numerator (top part).

so, we actually do

-6/1 × 8/8 = -48/8

with this little trick we have now .../8 to operate with, and our transformed fraction has still the same value

-6/1 = -48/8 indeed.

so, we have

x + -25/8 = -48/8

x - 25/8 = -48/8

x = -48/8 + 25/8 = -23/8

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1 year ago
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