Krisha has a chocolate Labrador retriever named Sam. She believes her dog weighs 60 pounds. Sam's actual weight is 75 pounds. Find the percent error. (1 point)
The percent error can be calculated as follows:
Percent Error = (|Observed Value - Expected Value| / Expected Value) * 100
Observed Value = 60 pounds
Expected Value = 75 pounds
Percent Error = (|60 - 75| / 75) * 100
Percent Error = (|-15| / 75) * 100
Percent Error = (15 / 75) * 100
Percent Error = (0.2) * 100
Percent Error = 20%
Therefore, Krisha's percent error in estimating Sam's weight is 20%.
Use proportional relationships to solve the following problem. Riley needs to earn enough money to purchase a new jacket. The one he likes best is $49.99. His state sales tax is 7.25%. How much money does he need to earn? Round to the nearest dollar. (1 point)
O S82
O $50
O $3.62
O 554
To find out how much money Riley needs to earn, we need to calculate the total price including the sales tax.
First, we calculate the amount of sales tax on the jacket:
Sales Tax = (7.25/100) * $49.99 = $3.62
Next, we add the sales tax to the price of the jacket to get the total price:
Total Price = $49.99 + $3.62 = $53.61
Therefore, Riley needs to earn approximately $54 (rounded to the nearest dollar) to purchase the new jacket. So the correct answer is:
$54
I didn’t mean to do that
No problem! If you have any other questions or need further assistance, feel free to ask.
Rafeal's family dinner costs $56.25. His dad wants him to leave a 35% tip. How much money should Rafeal provide as a tip? Round your answer to the nearest hundredth. (1 point)
O $35.00
O $75.94
•O $19.69
O S1.97
To calculate the tip amount, we need to multiply the cost of the dinner by the tip percentage:
Tip amount = (35/100) * $56.25 = $19.69
Therefore, Rafeal should provide a tip of $19.69. So the correct answer is:
$19.69
A university football stadium has 81,500 seats. The stadium is at full capacity on game day. Layla believes only 79,000 seats are occupied. Find the percent error of Layla's prediction. Round your answer to the nearest hundredth of a percent. (1 point)
О 0.0307%
0 -3.07%
О 90.3067%
O 3.07%
The percent error can be calculated using the formula:
Percent Error = (|Observed Value - Expected Value| / Expected Value) * 100
Observed Value = 79,000 seats
Expected Value = 81,500 seats
Percent Error = (|79,000 - 81,500| / 81,500) * 100
Percent Error = (|-2,500| / 81,500) * 100
Percent Error = (2,500 / 81,500) * 100
Percent Error ≈ 0.0307%
Therefore, the percent error of Layla's prediction is approximately 0.0307%. So the correct answer is:
0.0307%
Aatikah plans to buy books at a book fair. She thinks she will need $30.00 to purchase the books. She only spends $19.75. Find the percent error in her prediction. Round your answer to the nearest whole number.
(1 point)
0 1%
• 52%
0 58%
0 2%