Answer this question:Maci is planning for the new school year and goes to the store to buy pens. She needs ten blue pens and 15 red pens. If a blue pen costs ten cents each and a red pen costs twice as much as the blue pen, how much money does Maci pay for the pens?
Maci pays 10 * $0.10 = $1 for the blue pens. Each red pen costs 2 * $0.10 = $0.20. She pays 15 * $0.20 = $3.00 for the red pens. To buy all the pens she needs, Maci pays $3 + $1 = $4.
The answer is 4.

Answer this question:40 kids are running a race. 10% of them pass the finish line in less than 6 minutes. Three times that number finish in less than 8 minutes. 1/6 of the remaining kids take more than 14 minutes. How many kids take more than 14 minutes?
First find how many kids finish in under 6 minutes: 40 kids * 10% = 4 kids. Then triple that number to find how many finish in less than 8 minutes: 4 kids * 3 = 12 kids. Then subtract those two numbers from the total number of kids to find the number of remaining kids: 40 kids - 4 kids - 12 kids = 24 kids. Then divide that number by 6 to find how many kids take more than 14 minutes: 24 kids / 6 = 4 kids.
The answer is 4.

Answer this question:Karen's work tote bag is twice the weight of her husband Kevin's briefcase when the briefcase is empty. When Kevin puts his laptop and work papers in his briefcase, it is twice the weight of Karen's tote. Kevin's work papers are a sixth of the weight of the contents of his full briefcase. If Karen's tote weighs 8 pounds, how many more pounds does Kevin's laptop weigh than Karen's tote?
Kevin's full briefcase is 2 * 8 = 16 pounds. His empty briefcase is 8 / 2 = 4 pounds. The contents of his briefcase weigh 16 - 4 = 12 pounds. His work papers weigh 12 / 6 = 2 pounds. Thus, his laptop weighs 12 - 2 = 10 pounds. Therefore, Kevin's laptop weighs 10 - 8 = 2 pounds more than Karen's tote.
The answer is 2.

Answer this question:Ryan builds model mustang cars. A full size mustang is 240 inches long. The mid-size model that Ryan creates is 1/10th the size, and the smallest model that Ryan creates is half the size of the mid-size model. How many inches long is the smallest model mustang?
Mid - size:240 / 10 = 24 inches. Small Model:24 / 2 = 12 inches.
The answer is 12.