[Question]Megan pays $16 for a shirt that costs $22 before sales. What is the amount of the discount?
[Answer]Let x be the amount of the discount. We have, 22 - x = $16. We change the writing of the equation:. 22 - x + x = 16 + x. So, 22 = 16 + x. We then Remove 16 from both sides:. 22 - 16 = 16 + x - 16. So, 22 - 16 = x. So, the amount of the discount is x = $6. The answer is 6.
Q: With her savings, Sara bought two books: a book for 5.5£ and a book for 6.5£. She gives a 20£ bill to the seller. How much change does she get back?
A: To find out how much the saleswoman should return to her, we have to find out how much Sara spent in total. She spent 5.5£ + 6.5£ = 12£. So she gives 20£ and the cashier should keep 12£. The cashier therefore returns the difference between these two sums: 20£ – 12£ = 8£. The answer is 8.
Question: Chad has 100 apples and each apple has different sizes and different price ranges. Each small apple cost $1.5, medium apple cost $2, and big apples cost $3. If Donny bought 6 small and medium apples and also 8 big apples, how much will Donny have to pay for all of it?
Answer: Donny was charged $1.5 x 6 = $9 for the small apples. He was charged $2 x 6 = $12 for the medium apples. And he was also charged $8 x 3 = $24 for the big apples. Therefore, Donny has to pay $9 + $12 + $24 = $45 for all the apples. The answer is 45.
[Question]It is raining outside and Bill puts his empty fish tank in his yard to let it fill with rainwater. It starts raining at 1 pm. 2 inches of rainfall in the first hour. For the next four hours, it rains at a rate of 1 inch per hour. It then rains at three inches per hour for the rest of the day. If the fish tank is 18 inches tall, at what time will it be filled with rainwater.
[Answer]At 2 pm there are 2 inches of rain in the tank. At 6pm, there are 2 + 4 * 1 = 6 inches of rain in the tank. That means that there are 18 - 6 = 12 inches of tank that still need to be filled as of 6 pm. It will take 12 / 3 = 4 hours to finish filling the tank. The tank will be filled at 6 + 4 = 10pm. The answer is 10.
Q: Leila bought a living room set consisting of a sofa worth $1,250, 2 armchairs costing $425 each and a coffee table. The total amount of the invoice is $2,430. What is the price of the coffee table?
A: The price of 2 armchairs is $425 x 2 = $850. Mrs. Dubois will pay $850 for the 2 seats. Thus the Coffee table price is $2,430 – ($1,250 + $850) = $2,430 – $2,100 = $330. The answer is 330.
Question: Alden had 50 nephews ten years ago. This is half the number of nephews Alden has now. If Vihaan has 60 more nephews than Alden now, how many nephews do the two have altogether?
Answer:
If the number of nephews Alden had 50 years ago is half the number of nephews he has now, Alden has 50 * 2 = 100 nephews. Vihaan has 60 more nephews than Alden, meaning currently Vihaan has 100 + 60 = 160 nephews. Altogether, the two have 160 + 100 = 260 nephews. The answer is 260.