Answer:
x = 12
Step-by-step explanation:
The length of the midsegment is the average of the lengths of the other two.
5x -20 = ((4x +2) +(2x +6))/2
5x -20 = 3x +4 . . . . . . . . . . . . simplify
2x = 24 . . . . . . . . . . . . . . . . . . add 20-3x
x = 12 . . . . . . . . . . . . . . . . . . . . divide by 2
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<em>Check</em>
The three segment lengths are ...
top: 2·12 +6 = 30
midsegment: 5·12 -20 = 40
bottom: 4·12 +2 = 50
Indeed, 40 is the average of 30 and 50.
Answer:
x = 15
Step-by-step explanation:
First, you cross multiply both terms:
5 * 12 = 4 * x
Then, you simplify it.
60 = 4x
(60 = 4x)/4 =
15 = x
Subtracts 150 each time—
950-150=800 and 800-150=650 and so on and so forth. The number sequence only includes 5 numbers so there is no way to tell if there is a tougher solution.
