Girls 40%
......................................
boys 60%
Answer:
1. 6
2. 2
Step-by-step explanation:
1. 9-t=3(t-5)
9-t=3t-15
+t +t
9=4t-15
+15 +15
<u>24</u>=<u>4t</u>
4 4
6=t
2.5(5y+1)=10y-25
25y+5=10y-25
+25 +25
25y+30=10y
-25 -25
<u>30</u>=<u>-15y</u>
15 15
2=y
Answer:
15 students. 30%
Step-by-step explanation:
The rate of change of the given function at [-1,3] is 5
Further explanation:
Given function is:

And the interval is:
[-1,3]
In order to find the rate of chnage of function the given function's value is calculated at both points and divided by their difference
The formula is:

Here,
x_1 = -1
x_2 = 3
So,

Putting the values in the rate of change formula:

The rate of change of the given function at [-1,3] is 5
Keywords: Rate of change, functions
Learn more about functions:
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