Answer:
The tip will be $3.05.
The bill will cost $18.28 with the tip and tax.
Step-by-step explanation:
14.50 + 5% (or 0.73) = 15.23
15.23 + 20% (or 3.05) = 18.28
The standard deviation of the set is 5.2
To find standard deviation, we take the square root of the variance.
Answer:
Step-by-step explanation:
let the amount spent on popcorn be x and amount spent on drinks be y
If the total bill paid is $17.94, then x+y = $17.94
If she spend twice as much on popcorn as on drinks, then y = 2x
Substitute y = 2x into the original equation
x+y = $17.94
x + 2x = $17.94
3x = $17.94
x = $17.94/3
x = $5.98
Since y = 2x
y = 2($5.98)
y = $11.96
Therefore she spent $5.98 on popcorn and $11.96 on drinks
Answer:
the last choice
Step-by-step explanation:
