Q: Carla is taking attendance for her sixth-grade class. She knows that 2 students are in the restroom, and one less than three times that number of students are absent. If there are four rows with six desks each that are all 2/3 full, how many students does Carla teach, including the ones in and out of the classroom?
A: First find the number of absent students: 2 students * 3 - 1 = 5 students. Now find the number of students in each row of desks: 6 desks / row * 2 students / 3 desks = 4 students / row. Now find the number of students in all the rows: 4 rows * 4 students / row = 16 students. Now add the students that are absent or in the bathroom: 16 students + 2 students + 5 students = 23 students. The answer is 23.
Question: Rylee is bored and decides to count the number of leaves falling off the tree in her backyard. 7 leaves fall in the first hour. For the second and third hour, the leaves fall at a rate of 4 per hour. What is the average number of leaves which fell per hour?
Answer: 7 leaves fell in the first hour. 4 leaves fell in the second hour. 4 leaves fell in the third hour. The total number of leaves that fell during the 3 hours is 7 + 4 + 4 = 15 leaves. The average number of leaves that fell per hour is 15 leaves / 3 hours = 5 leaves per hour. The answer is 5.
[Question]Megan works eight hours a day and earns $7.50 per hour. If she works 20 days a month, how much will be her total earnings for two months of work?
[Answer]In a day, Megan earns 8 x $7.50 = $60. In a month, she will be earning 20 x $60 = $1200. Therefore, Megan will earn a total of 2 x $1200 = $2400 for two months of work. The answer is 2400.
Q: Carla spends 10 minutes sharpening her knife and 3 times that amount of time peeling vegetables. How much time does she spend on these activities total?
A: First find the total time Carla spends peeling vegetables: 10 minutes * 3 = 30 minutes. Then add the time she spent sharpening her knife: 30 minutes + 10 minutes = 40 minutes. The answer is 40.
Question: Abe finds 4 ants on the sidewalk. Beth sees 50% more ants than Abe. CeCe watches twice as many ants as Abe. Duke discovers half as many ants as Abe. How many ants do the four children find together?
Answer: Beth finds 4 + 2 = 6 ants. CeCe finds 4 x 2 = 8 ants. Duke finds 4 / 2 = 2 ants. The four children find 4 + 6 + 8 + 2 = 20 ants. The answer is 20.
Q: A fast-food chain offers free delivery for a minimum purchase of $18. Danny ordered 2 quarter-pounder burgers for $3.20 each, 2 large fries that cost $1.90 each, and 2 milkshakes that cost $2.40 each. How much more worth of food should he order to avail of the free delivery?
A:
Two quarter - pounder burgers cost $3.20 x 2 = $6.40. Two large fries cost $1.90 x 2 = $3.80. Two milkshakes cost $2.40 x 2 = $4.80. The total amount spent for the burgers, fries, and shakes is $6.40 + $3.80 + $4.80 = $15. Therefore, he should order $18 - $15 = $3 worth of additional food to take advantage of the free food delivery. The answer is 3.