Plug in 3 for y
8(3)^2-(3)-8
8(9)-3-8
72-3-8 = 61
Answer:
8- 3x = 2 I think this is
Setup Average Equation:
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Average=Sum of our 4 numbers + unknown number of x
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Total Numbers
15 = 3 + 19 + 8 + 32 + x
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5
Cross Multiply
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3 + 19 + 8 + 32 + = 15 x 5
x + 62 = 75
Subtract 62 from both sides of the equation to isolate x:
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x + 62 - 62 = 75 - 62
x = 13
The nearest hundredth would be 0.17
