Answer:
105 boys
Step-by-step explanation:
At a local preschool there is a ratio of 3 boys to 4 girls.
i.e boys:girls = 3:4
There are 245 preschoolers enrolled.
Number of boys = 
× 245 = 105 boys
The answer is 8.25
110/x=100/7.5
<span>(110/x)*x=(100/7.5)*x - </span>
<span>110=13.333333333333*x -
</span>(13.333333333333) to get x
<span>110/13.333333333333=x </span>
<span>8.25=x </span>
x=8.25
Answer:
5040 ways
Step-by-step explanation:
That is 7 books.
So the number of ways is factorial 7 , written 7!.
= 7*6*5*4*3*2*1
= 5040 ways
