Tony's dad is very strict about the washing machine and family members are only allowed to wash 50 total ounces of clothing at a time. Tony doesn't want to break the rules, so he weighs his clothes and finds that a pair of socks weighs 2 ounces, underwear weighs 4 ounces, a shirt weighs 5 ounces, shorts weigh 8 ounces, and pants weigh 10 ounces. Tony is washing a pair of pants, 2 shirts, a pair of shorts, and 3 pairs of socks. How many more pairs of underwear can he add to the wash and not break the rule?

How many ounces of shirts are being washed? ** He is washing 10 ounces of shirts because 2 x 5 =

<<2*5=10>>10 How many ounces of socks are being washed? ** He is washing 6 ounces of socks because 3 x 2 = <<3*2=6>>6 How many ounces of clothes are being washed? ** He is already washing 34 ounces of clothes because 10 + 10 + 8 + 6 = <<10+10+8+6=34>>34 How many more ounces can he wash? ** He can wash 16 more ounces because 50 - 34 = <<50-34=16>>16 How many pairs of underwear can he wash? ** He can wash 4 pairs of underwear because 16 / 4 = <<16/4=4>>4 #### 4 James took a job delivering groceries in his neighborhood. He can carry 10 bags on each trip. If he takes 20 trips a day, how many bags does he deliver in 5 days? How many bags does James deliver in a day? ** James delivers 10 x 20 = <<10*20=200>>200 bags a day. How many bags does James deliver in 5 days? ** So, he can deliver 200 x 5 = <<200*5=1000>>1000 bags in 5 days. #### 1000 Erwan went on shopping. He purchased a pair of shoes at $200 but discounted 30%, and two shirts at $80 each. Upon checkout, the cashier said that there is an additional 5% discount. How much did he spend after all the discounts? How much is the discount of a pair of shoes? ** The total discount of a pair of shoes is $200 x 30/100 = $<<200*30/100=60>>60. How much did he spend for a pair of shoes? ** He spent $200 - $60 = $<<200-60=140>>140 for a pair of shoes. How much did he spend for two shirts? ** The total cost of two shirts is $80 x 2 = $<<80*2=160>>160. What was the initial cost of his purchase? ** The initial cost of his purchase is $140 + $160 = $<<140+160=300>>300. How much was the additional discount? ** He got an additional $300 x 5/100 = $<<300*5/100=15>>15 discount upon checkout. How much did he spend after all the discounts? ** Therefore, Erwan spent $300 - 15 = $<<300-15=285>>285 after all the discounts. #### 285 On a normal day, Julia can run a mile in 10 minutes. However, today she decided to wear her new shoes to run. They were uncomfortable and slowed her mile down to 13 minutes. How much longer would it take Julia to run 5 miles in her new shoes than if she wore her old ones? How long would it take Julia to run 5 miles in her old shoes? ** With her regular shoes, it should take 5*10=<<5*10=50>>50 minutes to run five miles How long would it take Julia to run 5 miles in her new shoes? ** If she wore her new shoes it would take 13*5=<<13*5=65>>65 minutes to run five miles How much longer would it take Julia to run 5 miles in her new shoes than if she wore her old ones? ** 65-50=<<65-50=15>>15 more minutes #### 15 Meena bakes 5 dozen cookies for the school’s bake sale. She sells 2 dozen cookies to her biology teacher, Mr. Stone. Her friend Brock buys 7 cookies, and her friend Katy buys twice as many as Brock. How many cookies does Meena have left? How many cookies does Meena bake? ** Meena bakes a total of 5 x 12 = <<5*12=60>>60 cookies. How many cookies does Mr. Stone buy? ** Mr. Stone buys 2 x 12 = <<2*12=24>>24 cookies. How many cookies does Katy buy? ** Brock buys 7 cookies, so Katy buys 2 x 7 = <<7*2=14>>14 cookies. How many cookies does Meena sell? ** Meena sells a total of 24 + 7 + 14 = <<24+7+14=45>>45 cookies. How many cookies does Meena have left? ** She has 60 - 45 = <<60-45=15>>15 cookies left. #### 15 Monroe made 200 granola bars for her family. She and her husband ate 80, and the rest was divided equally among her children. If each child received 20 granola bars, how many children are in the family? How many granola bars did the children share? ** If Monroe and her husband ate 80 granola bars, then the number of granola bars the children shared is 200-80 = 120 How many children are in the family? ** Each child received 20 bars, and there were 120 granola bars, meaning there were 120/20 = <<120/20=6>>6 children in the family. #### 6 Trevor buys three bouquets of carnations. The first included 9 carnations, and the second included 14 carnations. If the average number of carnations in the bouquets is 12, how many carnations were in the third bouquet? How many bouquets are there? ** There are 3 bouquets. What is the total number of carnations? ** The total is the average times the number of bouquets, or 12*3=<<12*3=36>>36. How many carnations are accounted for? ** There are 9+14=<<9+14=23>>23 accounted for. How many carnations were in the third bouquet? ** The third included 36-23=<<36-23=13>>13 carnations. #### 13 Hayden has a tank with a small hole in the bottom. The tank starts with 40 gallons of water. It loses 2 gallons of water per hour. Hayden does not add any water for the first two hours. He adds 1 gallon of water to the tank in hour three. He adds three gallons of water to the tank in the fourth hour. How much water is left in the tank at the end of the fourth hour? How many gallons of water does the tank lose over the four hours? ** Over the four hours, the tank loses 2 * 4 = <<2*4=8>>8 gallons of water. How many gallons of water does Hayden add? ** Hayden adds a total of 1 + 3 = <<1+3=4>>4 gallons of water. How many gallons of water is left in the tank at the end of the fourth hour? ** At the end of the four hours, there is 40 - 8 + 4 = <<40-8+4=36>>36 gallons of water left in the tank. #### 36 Jerry needs to shingle 3 roofs. Each roof is made of two slanted rectangular sides measuring 20 feet by 40 feet. If he needs 8 shingles to cover one square foot of roof, how many shingles does he need total? How many square feet are in one side of a roof? ** First find the area of one side of a roof: 20 feet * 40 feet = <<20*40=800>>800 square feet How many square feet are in both sides of the roof? ** Then multiply that number by 2 to find the total area of both sides of the roof: 800 square feet/side * 2 sides = 1600 square feet How many square feet are in all the roofs? ** Then multiply that number by the number of roofs to find the total area of all the roofs: 1600 square feet/roof * 3 roofs = 4800 square feet How many shingles does Jerry need total? ** Then multiply the total area of the roofs by the number of shingles needed per square foot to find the total number of shingles needed: 4800 square feet * 8 singles/square foot = <<4800*8=38400>>38400 shingles #### 38400 A gecko eats 70 crickets every three days. The first day she eats 30% of the crickets. The second day she eats 6 less than the first, and the third day she finishes up the remaining crickets. How many crickets does she eat on the third day? How many crickets did the gecko eat on the first day? ** Day 1:70(.30)=21 crickets How many crickets did the gecko eat on the second day? ** Day 2:21-6=<<21-6=15>>15 crickets How many crickets did the gecko eat on the third day? ** Day 3:70-21-15=<<70-21-15=34>>34 crickets #### 34