Answer:
C. 11
Step-by-step explanation:
Substituting, we have ...
8{80, 19, 11} ?= 88
{640, 152, 88} ?= 88
The value from the set that makes the equation true is x = 11.
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<em>Alternate methods of solution (other than substitution)</em>
It can be easier to make use of your knowledge of factoring:
8x = 8·11
x = 11
Or to make use of your knowledge of numbers (place value):
8·10 = 80
so x will not be very different from 10.
Answer:
I do not believe this is a function because the points on the graph are above each other on one line.
Step-by-step explanation:
To help you with it, plug-in 15 in each equation and see what you get!
Answer:9
Step-by-step explanation:
7+9+11+13=40
