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Murrr4er [49]
4 years ago
6

There are 400 students in a school. Fifty five percent are girls. How many boys are there?

Mathematics
1 answer:
ki77a [65]4 years ago
5 0
1) 55% is girls, then 
100-55=45% is boys.

2) 45%=0.45                                     or  2) 400 ----100%
3)400*0.45= 180 boys                                 x -----45%      x=400*45/100=180 boys

Answer is 180 boys.
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gethin gets 2/9

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3 years ago
Is -6.743743… a rational or irrational number?
yaroslaw [1]

It's rational because it contains a repeating digit pattern, 743 (first option).

In particular, if

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then

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Subtracting, we can eliminate the trailing end and solve for <em>x</em> exactly:

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8 0
3 years ago
Can someone help me w this plz
melomori [17]
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5 0
3 years ago
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1. Is (0,9) a solution?<br> y = -3x + 5
irinina [24]

Answer:

no

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then (0, 9 ) is not a solution to the equation

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2 years ago
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