Q: Mike wants to buy a new phone. The cost of the phone is $1300. How much more money does Mike need if he already has 40% of the amount he needs?
A: Mike already has 40 / 100 * 1300 = $520. This means he needs 1300 - 520 = $780 more, to buy the phone. The answer is 780.
Question: Tamara is 3 times Kim's height less 4 inches. Tamara and Kim have a combined height of 92 inches. How many inches tall is Tamara?
Answer: Let K = Kim's height. Tamara = 3K - 4. K + 3K - 4 = 92. 4K - 4 = 92. 4K = 96. Kim = 24 inches. Tamara = (3 * 24) - 4 = 68 inches. Tamara is 68 inches tall. The answer is 68.
[Question]It's February 2021. Mark was born in January 1976. Graham is 3 years younger than Mark, and Graham's sister, Janice, is 1/2 the age of Graham. How old is Janice?
[Answer]It's 2021 and Mark was born in 1976 so Mark is 2021 - 1976 = 45 years old. Graham is 3 years younger than Mark who is 45 so Graham is 45 - 3 = 42 years old. Janice is 1 / 2 the age of Graham who is 42 so Janice is 42 / 2 = 21 years old. The answer is 21.
Q: Mary Anne drinks 1/5 of a bottle of sparkling water every night at dinner. If each bottle costs her $2.00, how much does she spend on sparkling water every year?
A: She drinks 1 / 5 of a bottle of sparkling water every night so over an entire year she drinks .2 * 365 = 73 bottles of sparkling water. Every bottle costs $2.00 and she drinks 73 bottles a year so she spends 2 * 73 = $146.00 a year on sparkling water. The answer is 146.
Question: Bill and Jean are both cleaning out their garages. Bill makes a certain number of trips to the dump and Jean makes that many trips plus 6. If they make 40 trips total, how many trips does Jean make?
Answer: Let b be the number of trips Bill makes and j be the number Jean makes. We know that b + j = 40, and j = b + 6. Substituting the first equation into the second equation, we get b + b + 6 = 40. Combining like terms, we get 2b + 6 = 40. Subtracting 6 from both sides, we get 2b = 34. Dividing both sides by 2, we get b = 17. Substituting that value back into j = b + 6, we get j = 17 + 6 = 23. The answer is 23.
Q: Jacob loves to build things. In Jacob's toy bin there are 18 red blocks. There are 7 more yellow blocks than red blocks. There are also 14 more blue blocks than red blocks. How many blocks are there in all?
A:
The number of yellow blocks is 18 blocks + 7 blocks = 25 blocks. The number of blue blocks is 18 blocks + 14 blocks = 32 blocks. The total number of red, yellow, and blue blocks is 18 blocks + 25 blocks + 32 blocks = 75 blocks. The answer is 75.