Answer:
=
7
Step-by-step explanation:
3(x−4)+9=18
3
−
1
2
+
9
=
1
8
3
−
3
=
1
8
3
=
1
8+3
3
=
21
x= 21/3
x=7
Answer: first option 0 to 30 minutes.
Jusitification:
Interpolation is the prediction of an intermediate value using a linear model.
In this case, she has the data for 0, 5, 10, 15, and 30 minutes.
So, she can interpolate between any pair of consecutive data to find an intermediate value.
For example: i) if she wants the value for 20 minutes, she can interpolate between 15 and 30 minutes, ii) if she wants the value for 7 minutes, she can interpolate between 5 and 10 minutes, iii) if she wants the value for 12 mintues, she will interpolate between 10 and 15 minutes.
Answer:
The number of students in each <u>van are 7</u> and number of students in each <u>bus are 23.</u>
Step-by-step explanation:
Let the number of students in each van be 'x' and number of students in each bus be 'y'.
Given:
<u>High School A:</u>
Number of students = 132
Number of buses = 3
Number of vans = 9
As per question,
-------1
<u>High School B:</u>
Number of students = 205
Number of buses = 8
Number of vans = 3
As per question,
-------2
Multiplying equation (2) by -3 and adding the result to equation (1), we get:


Now, plug in 23 for 'y' in equation (1) and solve for 'x'. This gives,

Therefore, the number of students in each van are 7 and number of students in each bus are 23
By normally dividing it (the two different size of the boxes
R<5
r has to be less than 5, now doesn't it