Tom uses 10 weight plates each weighing 30 pounds on an exercise machine. This exercise machine uses special technology to make the weights 20% heavier on the lowering portion. How heavy did the weights feel when being lowered?

The weight stack weighed 10*30=

<<10*30=300>>300 pounds So the added weight made it 300*.2=<<300*.2=60>>60 pounds heavier So when he lowered the weight it was 300+60=<<300+60=360>>360 pounds #### 360 One pie costs $4 for a piece. Each pie is having 3 pieces. During one hour the bakery can make 12 pies. Creating one pie costs the bakery $0.5. Considering the bakery would be able to sell all pie pieces, how much money would it make? If the bakery can make 12 pies, this means there would be 12 * 3 = <<12*3=36>>36 pie pieces. For all the pieces the bakery would make 36 * 4 = $<<36*4=144>>144. The cost of making 12 pies is 12 * 0.5 = $<<12*0.5=6>>6. That means the bakery would make 144 - 6 = $<<144-6=138>>138. #### 138 Angie bought 3 lbs. of coffee at the store today. Each lb. of coffee will brew about 40 cups of coffee. Angie drinks 3 cups of coffee every day. How many days will this coffee last her? A pound of coffee makes 40 cups of coffee, so 3 lbs. coffee * 40 cups of coffee per lb. = <<3*40=120>>120 cups of coffee. Angie drinks 3 cups of coffee a day, so she has enough coffee to last her 120 cups of coffee / 3 cups of coffee per day = <<120/3=40>>40 days #### 40 A rectangular plot of private property is fenced in by a chain-link fence. The long sides of the plot are three times the length of the short sides. One short side of the fence is rusted from being hit by a sprinkler and needs to be replaced. If all the sides of the fence together are 640 feet long, how many feet of fence need to be replaced? Let S be the length of the short side of the fence. Thus, the length of a long side of the fence is 3S. There are 2 of each side, so the whole fence is 2S + 2 * 3S = 2S + 6S = 8S long. The whole fence is 8S = 640 feet long. Thus, the short side of the fence that needs to be replaced is S = 640 / 8 = <<640/8=80>>80 feet long. #### 80 Nate got lost looking for his car in the airport parking lot. He had to walk through every row in Section G and Section H to find it. Section G has 15 rows that each hold 10 cars. Section H has 20 rows that each hold 9 cars. If Nate can walk past 11 cars per minute, how many minutes did he spend searching the parking lot? First find the number of cars in Section G by multiplying the number of rows by the number of cars per row: 15 rows * 10 cars/row = <<15*10=150>>150 cars Then do the same thing for Section H: 20 rows * 9 cars/row = <<20*9=180>>180 cars Then add the two quantities of cars to find the total number of cars Nate walked past: 150 cars + 180 cars = <<150+180=330>>330 cars Finally, divide the number of cars Nate passed by the numbers he passes each minute to find how long he spent searching: 330 cars / 11 cars/minute = <<330/11=30>>30 minutes #### 30 Bush and Matt are brothers. Bush is younger than Matt by 3 years. This year Bush will be 12 years old. What will be Matt's age 10 years from now? Bush is younger than Matt by 3 years, so if Bush is 12 years old then Matt is 12+3 = <<12+3=15>>15 years old In 10 years' time, Matt will be 10+15 = <<10+15=25>>25 years old #### 25 On a road map, 1/4 inch represents 8 miles of actual road distance. The towns of Pence and Hillcrest are represented by points 3 3/8 inches apart on the map. What is the actual distance, in miles, between the towns? If 1/4 inch on the map represents 8 miles on real land, 1 inch represents 4 * 8 = 32 miles. Since 1 inch represents 32 miles, 3 inches represent 3 * 32 = <<3*32=96>>96 miles. 1/ 4 inch represents 8 miles, 1/8 inch represents 8 / 2 = <<8/2=4>>4 miles because 1/8 is half of 1/4. If 1/8 inch represents 4 miles, 3/8 of an inch represents 3 * 4 = 12 miles. This means 3 3/8 inches on the map translate to 96 + 12 = 108 miles. #### 108 Hannah sold 40 pieces of cookies for $0.8 each and 30 cupcakes for $2 each. She used the money to buy 2 sets of measuring spoons for $6.5 each. How much money does she have left? Hannah's earnings from the cookies is 40 x $0.8 = $<<40*0.8=32>>32. Her earnings from the cupcakes is 30 x $2 = $<<30*2=60>>60. Her total earnings for the cupcakes and cookies is $32 + $60 = $<<32+60=92>>92. The cost of 2 sets of measuring spoons is 2 x $6.5 = $<<2*6.5=13>>13. So, Hannah has $92 - $13 = $<<92-13=79>>79. #### 79 Anne is 2 times as tall as her sister while Bella is 3 times as tall as Anne. If Anne is 80cm tall, what is the height difference between Bella and Anne's sister? Anne is 2 times as tall as her sister hence 2*(her sister's height) = 80cm Her sister's height = 80cm/2 = <<80/2=40>>40cm Bella is 3 times as tall as Anne hence Bella's height is 3*80 cm = <<3*80=240>>240 cm The height difference between Bella and Anne's sister = 240-40 = <<240-40=200>>200cm #### 200 Adam goes to a small school, which teaches 80 students in three classes. 40% of the students are in class A, and class B has 21 students fewer than class A. The rest are in class C. How many students are in this class? In class A, there are 40/100 * 80 = <<40/100*80=32>>32 students. In class B, the number of students is less by 21, which means class B has 32 - 21 = <<32-21=11>>11 students. That means 80 - 32 - 11 = <<80-32-11=37>>37 students are in class C. #### 37