Answer:
33 students
Step-by-step explanation:
Since there aren’t going to be fractions of people, you can just count up using the whole numbers in the ratio (4 on the left, 7 on the right) and then check if the sum is between 24 and 40.
4:7 = 11 students (not enough)
8:14 = 22 students (not enough)
12:21 = 33 students (fits criteria)
12 boys, 21 girls, for a total of 33 students.
They don’t have anything in common
Answer:
Step-by-step explanation:
If R, A, and P all share 108 pounds in the ratio of 2 to 3 to 1, then
2x + 3x + 1x = 108 and
6x = 108 so
x = 18.
R holds the ratio of 2x, so he gets 2(18) which is 36;
A holds the ratio of 3x, so he gets 3(18) which is 54;
P holds the ratio of 1x, so he gets 1(18) which is 18.
36 + 54 + 18 better equal 108...and it does!
Answer:
<em>The average cost is less than 100 when the number of items x is greater than 2</em>
Step-by-step explanation:
The cost equation is 
The average cost 
We want to know when the cost Cp is less than 100.
So
For 
The average cost is less than 100 when 
