Five sixths of the sum of three consecutive numbers is -237.5 write an equation and solve
1 answer:
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The first thing we must do for this case is to define variables.
We have then:
x: number of slices
y: total cost
We write the linear function that relates the variables.
We have then:
Then, we evaluate the number of slices to find the total cost.
-two slices cost:
We substitute x = 2 in the given equation:
Answer:
two slices = 2.2 $
-ten slices cost:
We substitute x = 10 in the given equation:
Answer:
ten slices = 11 $
-half a slice cost:
We substitute x = 1/2 in the given equation:
Answer:
half a slice = 0.55 $
199.
the z score for the 90th percentile is 1.28, so you can solve the equation
which gets you the 199
the z score for the 90th percentile is 1.28, so you can solve the equation
which gets you the 199