Answer:
107
Step-by-step explanation:
multiply 19 times 6 minus 7 because Felipe ate 7
The marching band has 107 pizza slices left after Felipe ate 7 slices from a total of 114 slices obtained from 19 pizzas.
This math problem requires to determine the number of pizza slices left after Felipe ate some. To start, we multiply the total number of pizzas (19) by the number of slices each pizza has (6). This gives us a total of 114 slices. Felipe ate 7 slices. Subtracting these from the total, we get 107 slices left for the rest of the band.
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Percent error is the difference in percent between the estimated cost and the actual cost. So in this case the percent difference between 50 and 65. to find this we need to find out what percent the estimated cost is out of the actual cost, So what percent is 50 out of 65? We can find this by doing the equation 50 / 65, which is 0.76923076923.
This rounds to 0.77, which is 77%
So this means 77% is 50, and 100% is 65. So what is the difference? 100 - 77 = 23. So 23% is your answer.
Answer: 23% error.
Step-by-step explanation:
Percentage error = error in cost/actual cost X 100
Error = $65 - $50
= $15
Therefore, percent error
= 15/65 x 100
= 15 x 100/65
= 1500/65
= 23.07
Therefore, to the nearest whole %
= 23% error.