[Question]Zach is saving his money to buy a brand new bike that costs $100. His weekly allowance is $5. His parent will pay him an extra $10 to mow the lawn. His neighbor will pay him $7 per hour to babysit their son. He has already saved up $65. He'll receive his allowance on Friday and he's planning on babysitting for 2 hours this Saturday after he mows the lawn. How much more money does Zach need to earn before he can buy the bike?
[Answer]If he babysits for 2 hours at $7 per hour, he will earn 2 * 7 = $14. This week he will earn $5 allowance, $10 mowing the lawn and $14 from babysitting for a total of 5 + 10 + 14 = $29. If we add the $29 he will earn to his $65 savings, he will have a total of 29 + 65 = $94. The bike costs $100 and he will have $94 leaving $100 - $94 = $6 more that he will need to earn. The answer is 6.
Q: Sadie has 140 math homework problems for the week. 40 percent are Algebra problems, and half of the Algebra problems are solving linear equations. How many solving linear equations problems does Sadie have to solve?
A: Algebra:140(.40) = 56 problems. Linear:56 / 2 = 28 problems. The answer is 28.
Question: Peter has four horses. Each one eats 4 pounds of oats, twice a day, and 3 pounds of grain once a day. How many pounds of food does he need to feed his horses for 3 days?
Answer: Peter needs 2 * 4 pounds of oats = 8 pounds of oats per horse per day. Peter will need 8 pounds oats * 3 days = 24 pounds of oats per horse. Peter will need 24 pounds of oats * 4 horses = 96 pounds of oats total. Peter needs 3 pounds of grain * 3 days per horse = 9 pounds of grain per horse. Peter will need 9 pounds of grain * 4 horses = 36 pounds of grain total. For 3 days Peter will need a total of 96 pounds oats + 36 pounds grain = 132 pounds total. The answer is 132.
[Question]Charles bought 20 papers to draw. Today Charles drew 6 pictures. Yesterday he drew 6 pictures before going to work and some pictures when he came back. How many pictures did Charles draw when he came back from work knowing that he has 2 papers left?
[Answer]Charles drew 6 + 6 = 12 pictures. He has 20 - 12 = 8 papers left. So Charles drew when he came back from work 8 - 2 = 6 pictures. The answer is 6.
Q: Micah bought envelopes to send, and depending on the weight of the envelope he will need more stamps. If an envelope weighs more than 5 pounds, he will need 5 stamps. If it weighs less than that, it will only need 2 stamps. If he bought 52 stamps with 6 envelopes that weigh less than 5 pounds, how many envelopes in total did Micah need to buy?
A: Micah had to buy 6 * 2 = 12 stamps for 6 envelopes less than 5 pounds. He has 52 - 12 = 40 more stamps to buy. There are 40 / 5 = 8 envelopes that weigh more than 5 pounds. Micah needed to buy 8 + 6 = 14 envelopes. The answer is 14.
Question: The coach of a football team asked his players to do six laps of the field. The field is in the shape of a rectangle of length 100 m and width 50 m. What is the distance each player will run, in meters?
Answer:
One lap corresponds to the perimeter of a rectangle of 100 m length and 50 m width: 2 * 100 + 2 * 50 = 300 metres. Each player has to do six turns of the field, so runs 6 * 300 = 1800 meters. The answer is 1800.