13 red, 5 blue, 7 green...for a total of 25
percentage of green ones is : 7/25 = 0.28 = 28% <==
Answer:
a) 0.8( 8/10 gives 0.8)
b)0.7( if it was 7/100 it would have been
0.07)
c)3.5( by converting mixed fractions to improper fractions, that is, 3×2+1 and having the same denominator 2… we get 7/2… for the purpose of converting it to decimal, 7×5/2*5= 35/10… by moving one decimal place to the left, we get 3.5)
D) 2.5 ( the same way as c) 5*5/2*5: 25/10 or you can make it to be 5*50/2*50: 250/100 which still gives 2.5)
Evaluating a function means to plug the required value, substituting every x occurrence with that value.
So, you have
If n is the first of these integers, then the other three are n + 1, n + 2, and n + 3. Then
n + (n + 1) + (n + 2) + (n + 3) = 114
4n + 6 = 114
4n = 108
n = 27
So the four numbers are 27, 28, 29, and 30.
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