Well if there were 50 questions it would be 2 points each so if he ended up with 96% he must have missed 2 questions
Answer:
P(largest or smallest) = 0.30 + 0.20 - 0.15
Step-by-step explanation
You combine the chances of doing the largest and smallest, without the chance of riding both.
I am going to build a chart this is best when using ratios
seniors junior total
7 4
*? *? *?
Totals 121
The way we fill out this chart is that we add the rows and multiply the columns.
So we add 7 + 4 and fill it in our chart we get 11
seniors junior total
7 4 11
*? *? *?
Totals 121
now to find the *? need to divide 121/11 to get *?
121/11 = 11
so now our chart looks like this
seniors junior total
7 4 11
11 11 11
Totals 121
Now we multiply each column
so
7 * 11 = 77
4*11 = 44
now our chart look like this
seniors junior total
7 4 11
11 11 11
Totals 77 44 121
so seniors get 77 spaces
and juniors get 44 spaces.
100%/x%=148/43
<span>(100/x)*x=(148/43)*x - </span>we multiply both sides of the equation by x
<span>100=3.44186046512*x - </span>we divide both sides of the equation by (3.44186046512) to get x
<span>100/3.44186046512=x </span>
<span>29.0540540541=x </span>
<span>x=29.0540540541
</span>now we have:
<span>43 is 29.0540540541% of 148</span>
Answer:
%88.88... and on and on
Formula Nonsense: percentage = b/l then *100 add % sign
so P= 32/36 so 0.888....*100= 88.88... so she made 88%
