ANSWER
36 .19
EXPLANATION
We want to estimate
This is the same as
or
We multiply the numerators to get,
We convert to decimals to get
I came up with 7+5(x-1)
7 is a fixed one time cost.
5(x-1). x-1 because you have already charged $7 for the first hour.
Checking to make sure it is correct
so if a person stays 1 hour
7+5(1-1)
7+5(0) = 7
This answer makes sense because they get charged $7 the first hour
so say they stay 3 hours
7+5(3-1)
7+5(2) = 17
This answer makes sense because they get charges $7 for the first hour and $5 for the other 2. so 7+5+5=17.
we can see that the function works
Answer: 52
Step-by-step explanation:
KS3 students = 380
KS4 students = 240
KS5 students = 110
Total number of students = 730
Estimated number of KS3 students will be:
= 380/730 × 100.
= 52.06
= 52.
There'll be 52 KS3 students