Answer:
13
Step-by-step explanation:
(12) - (3) + (4) = 13
you just insert the numbers into the equation
Answer:
5(2x-8)+15=-15
10x-40+15=-15
10x-25=-15
+25 +25 (add 25 to both sides)
____________
10x=10
divide by 10 on both sides
x=1
Answer:
b) 1
Step-by-step explanation:
The average rate of change on an interval is given by the rise on the interval divided by the run (the width of the interval). Here, the end points are ...
(5, -3) and (8, 0)
The rise is 0-(-3) = 3. The run is 8 -5 = 3. The ratio of rise to run is 3/3 = 1.
The average rate of change on [5, 8] is 1.
Each pound costs 2.40,
to check this 2.40 * 5 = 12
so 2.40 * 7 = 16.80
Answer: 16.80
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