Matt can write 10 words a minute with his right hand and 7 words a minute with his left hand. How many words would Matt write in 5 minutes with his right hand than with his left?

The difference in writing speed is 10 words/minute - 7 words/minute =

<<10-7=3>>3 words/minute Matt can write 3 words/minute x 5 minutes = <<3*5=15>>15 more words with his right hand. #### 15 Porche has 3 hours to get all her homework done. Her math homework takes her 45 minutes. Her English homework takes her 30 minutes. Her science homework takes her 50 minutes. Her history homework takes her 25 minutes. She also has a special project due the next day. How much time does she have left to get that project done? She has 180 minutes to do work because 3 times 60 equals <<3*60=180>>180 She has already spent 150 minutes on homework because 45 plus 30 plus 50 plus 25 equals <<45+30+50+25=150>>150 She has 30 minutes to finish her project because 180 minus 150 equals <<180-150=30>>30. #### 30 Rachel is 4 years older than Leah. If the sum of their ages is 34, how old is Rachel? If Rachel and Leah have the same age, then the sum of their ages would be 34 - 4 = <<34-4=30>>30. So Leah would be 30/2 = <<30/2=15>>15 years old. Hence, Rachel is 15 + 4 = <<15+4=19>>19 years old. #### 19 Cooper is building a brick fence around all four sides of his property. Each of the four walls of his fence is 20 bricks long, 5 bricks high, and 2 bricks deep. How many bricks does Cooper need to complete his fence? A single layer of each wall requires 5 rows * 20 bricks per row = <<5*20=100>>100 bricks. As each wall has a thickness of 2 bricks, he will need 100 bricks * 2 = <<100*2=200>>200 bricks per wall. If the complete fence contains four walls, he will require a total of 200*4=<<200*4=800>>800 bricks. #### 800 Rafael works 10 hours on Monday and 8 hours on Tuesday on his delivery job. With 20 hours left to work in the week, how much money does Rafael make if he is paid $20 per hour? The total number of hours that Rafael has worked by Tuesday is 8+10 = <<8+10=18>>18 hours. To complete his assigned work hours, Rafael works 20 hours more, making his total weekly hours to be 18+20 = <<38=38>>38 hours. Since he is paid $20 per hour, he makes $20*38 = $<<20*38=760>>760 a week. #### 760 A survey conducted by the school showed that only 20% of the 800 parents agree to a tuition fee increase. How many parents disagree with the tuition fee increase? There were 800 x 20/100 = <<800*20/100=160>>160 parents who agreed to the tuition fee increase. So, there were 800 - 160 = <<800-160=640>>640 parents who disagreed. #### 640 Mr. Martinez is two feet taller than his daughter, Chiquita. If Chiquita is 5 feet tall, calculate their combined height. If Chiquita is 5 feet tall, then Mr. Martinez is 5+2 = <<5+2=7>>7 feet tall Together, their height is 7+5 = <<7+5=12>>12 feet. #### 12 John commissions an artist to make him a 9 by 13 drawing. A black and white drawing that size would cost $160. He wants a color drawing so that is 50% more expensive. How much did he pay? The extra cost for coloring is 160*.5=$<<160*.5=80>>80 So the total cost was 160+80=$<<160+80=240>>240 #### 240 A bar of steel weighs twice the mass of a bar of tin. If a steel bar also weighs 20 kgs more than a copper bar and a copper bar weighs 90 kgs, calculate the total weight of a container with 20 bars of each type of metal. The total weight of 20 bars of copper is 20*90 = <<20*90=1800>>1800kgs If a copper bar weighs 90 kgs, and a steel bar weighs 20 kgs more than a copper bar, the weight of a steel bar is 90+20 = <<90+20=110>>110 kgs. If a bar of steel weighs 110 kgs, 20 bars will weigh 20*110 = 2200kgs The total weight of 20 bars of copper and steel is 2200+1800 = <<2200+1800=4000>>4000 kgs A bar of steel weighs twice the mass of a bar of tin, meaning a bar of tin weighs 110/2 = <<55=55>>55 kgs The total weight of 20 bars of tins is 55*20= <<55*20=1100>>1100 kgs The total weight of 20 bars of each metal is 4000+1100 = 5100 kgs #### 5100 Farmer Red has three milk cows: Bess, Brownie, and Daisy. Bess, the smallest cow, gives him two pails of milk every day. Brownie, the largest cow, produces three times that amount. Then Daisy makes one pail more than Bess. How many pails of milk does Farmer Red get from them each week? Bess produces 2 pails every day. Brownie produces 3 times as much * 2 = <<3*2=6>>6 pails every day. Daisy produces 2 + 1 more pail than Bess = <<2+1=3>>3 pails every day. Bess, Brownie, and Daisy together produce 2 + 6 + 3 = <<2+6+3=11>>11 pails every day. A week is 7 days, so Farmer Red gets 11 * 7 = <<11*7=77>>77 pails each week. #### 77