Q: Ms. Mitsuko told the class that if the average score on their quiz is higher than 75% then they will get a pizza party. There are 25 students in the class. One student is absent and has to take the test the next day. The average score of the students who took the test was 77%. What is the lowest grade the absent student can get for the class to still get a pizza party?
A: The total percentage the class needs to get is 18.75 because 25 x .75 = 18.75. The total percentage the class has absent the one student is 18.48. The lowest the absent student can get and still have a pizza party is 27% because (18.75 - 18.48)x 100 = 27. The answer is 27.
Question: Wendy went to the dentist for a cleaning, two fillings, and a tooth extraction. The dentist charges $70 for a cleaning and $120 for a filling. Wendy’s dentist bill was five times the cost of a filling. What did Wendy pay for the tooth extraction?
Answer: Wendy’s dentist bill was 5 * $120 = $600. She got two fillings at a cost of 2 * $120 = $240. Thus, Wendy paid $600 - $240 - $70 = $290 for the tooth extraction. The answer is 290.
[Question]10 people attended class on Monday, 15 on Tuesday, and 10 on each day from Wednesday through Friday. What was the average number of people who attended class each day?
[Answer]A total of 10 + 15 + 10 + 10 + 10 = 55 people attended class across the 5 days. An average of 55 people / 5 days = 11 people per day attended class. The answer is 11.
Q: Carson is sorting seaweed for various uses. 50% of the seaweed is only good for starting fires. 25% of what's left can be eaten by humans, and the rest is fed to livestock. If Carson harvests 400 pounds of seaweed, how many pounds are fed to livestock?
A: First find what percent of the seaweed can be used for something besides starting fires: 400 pounds / 2 = 200 pounds. Then divide that amount by 4 to find the amount that's eaten by humans: 200 pounds / 4 = 50 pounds. Then subtract that amount from the 200 pounds to find how much is eaten by livestock: 200 pounds - 50 pounds = 150 pounds. The answer is 150.
Question: Jackson’s mom packs him a peanut butter and jelly sandwich for his school lunch on Wednesdays and Fridays. There are 36 weeks of school and Jackson has only missed 1 Wednesday and 2 Fridays. How many peanut butter and jelly sandwiches did he eat for lunch this school year?
Answer: 36 weeks of school x 2 days of the week = 72 days of school. 1 Wednesday + 2 Fridays = 3 days of school missed. 72 days of school – 3 days of school missed = 69 peanut butter and jelly sandwiches eaten. The answer is 69.
Q: Uncle Jerry wants to reap ripe tomatoes from his garden. Yesterday, he was able to reap 120 tomatoes. Today, he was able to reap 50 more tomatoes than yesterday. How many tomatoes did Uncle Jerry reap?
A:
Today, Uncle Jerry reaps 120 + 50 = 170 tomatoes. Therefore, Uncle Jerry reaps a total of 120 + 170 = 290 ripe tomatoes. The answer is 290.