Marcy spends 12 minutes petting her cat and 1/3 of that time combing it. How many minutes does she spend with her cat in total?

First find the time Marcy spends combing the cat: 12 minutes / 3 =

<<12/3=4>>4 minutes Then add that to the time spent petting the cat to find the total time she spends with it: 4 minutes + 12 minutes = <<4+12=16>>16 minutes #### 16 Andrea needs 45 rhinestones to finish an art project. She bought a third of what she needed and found a fifth of what she needed in her supplies. How many rhinestones does she still need? Andrea bought 45 / 3 = <<45/3=15>>15 rhinestones. She found 45 / 5 = <<45/5=9>>9 rhinestones in her supplies. Thus, Andrea still needs 45 - 15 - 9 = <<45-15-9=21>>21 rhinestones. #### 21 A firefighter's hose can deliver 20 gallons of water per minute. For a building fire that requires 4000 gallons of water to put out, how long will it take, in minutes, for a team of 5 firefighters, each with their own hose, to put out the fire? A team of 5 firefighters with hoses can deliver 5 * 20 = <<5*20=100>>100 gallons of water per minute. To deliver 4000 gallons, this team will take 4000/100 = <<4000/100=40>>40 minutes to extinguish the fire. #### 40 Olivia bought two packs of basketball cards at $3 each, and 5 decks of baseball cards at $4 each. If she had one $50 bill, how much change did she receive? Two packs of basketball cards cost 2 x $3 = $<<2*3=6>>6. Five decks of baseball cards cost 5 x $4= $<<5*4=20>>20. Thus, the total cost of the cards was $6 + $20 = $<<6+20=26>>26. Therefore, Olivia received change of $50 - $26 = $<<50-26=24>>24. #### 24 Janet uses her horses' manure as fertilizer. One horse produces 5 gallons of fertilizer per day. Once Janet has collected enough fertilizer, she'll spread it over 20 acres of farmland. Each acre needs 400 gallons of fertilizer and Janet can spread fertilizer over 4 acres per day. If Janet has 80 horses, how long will it take until all her fields are fertilized? First find the total amount of fertilizer the horses produce per day: 5 gallons/horse * 80 horses = <<5*80=400>>400 gallons Then multiply the number of acres of farmland by the number of gallons per acre to find the total amount of fertilizer needed: 400 gallons/acre * 20 acres = <<400*20=8000>>8000 gallons Then divide the total amount of fertilizer needed by the amount of fertilizer produced per day to find the number of days needed to collect fertilizer: 8000 gallons / 400 gallons/day = <<8000/400=20>>20 days Then divide the total number of acres Janet needs to cover by the number of acres she can cover per day to find how many days it takes her to cover them all: 20 acres / 4 acres/day = <<20/4=5>>5 days Then add the time to collect the fertilizer to the time to spread it to find the total time: 5 days + 20 days = <<5+20=25>>25 days #### 25 Jonathan ran 7.5 kilometers. Mercedes ran twice that distance and Davonte ran 2 kilometers farther than Mercedes. How many kilometers did Mercedes and Davonte run in total? Mercedes = 2 * 7.5 = <<2*7.5=15>>15 km Davonte = 15 + 2 = <<15+2=17>>17 km 15 + 17 = <<15+17=32>>32 km Mercedes and Davonte ran 32 km in total. #### 32 Micheal decided to take some piano lessons. One lesson costs $30 and lasts for 1.5 hours. How much will Micheal need to pay for 18 hours of lessons? One lesson lasts 1.5 hours, so 18 hours of them is 18 / 1.5 = <<18/1.5=12>>12 lessons. If one lesson costs $30, then 12 lessons cost 12 * 30 = $<<12*30=360>>360. #### 360 The Early Bird Dinner offered dinner meals at half off the menu price if you eat between 2-4 pm. Curtis ordered the Salisbury Steak that costs $16.00 and Rob ordered the Chicken Fried Steak at $18.00. If they ate at 3 pm, what was the cost of their total bill? Curtis had the Salisbury steak for $16.00 and Rob had the Chicken Fried Steak at $18.00 so their meal cost 16+18 = $<<16+18=34.00>>34.00 They ate 3 pm so their meal is half off so their meal cost 34/2 = $17.00 #### 17 James pays $1000 for advertising. It brought 100 customers to his site and 80% of those bought something at the store that cost $25. How much profit does he gain from the ad? 100*.8=<<100*.8=80>>80 customers bought something That means they were worth 80*25=$<<80*25=2000>>2000 So he gained 2000-1000=$<<2000-1000=1000>>1000 from the ad #### 1000 Karlee has 100 grapes and 3/5 as many strawberries as grapes. Giana and Ansley, two of her friends, come visiting, and she gives each of them 1/5 of each fruit. How many fruits is Karlee left with in total? If Karlee has 3/5 times as many strawberries as grapes, she has 3/5 * 100 grapes = <<3/5*100=60>>60 strawberries. When her friends come over, she gives each of them 1/5 * 100 grapes = <<1/5*100=20>>20 grapes. In total, she gives out to her two friends 2 friends * 20 grapes/friend = <<2*20=40>>40 grapes. She's left with 100 grapes - 40 grapes = <<100-40=60>>60 grapes. She also gives each of her friends 1/5 * 60 strawberries = <<1/5*60=12>>12 strawberries. In total, she gives her two friends 2 friends * 12 strawberries/friend = <<2*12=24>>24 strawberries. She's left with 60 strawberries - 24 strawberries = <<60-24=36>>36 strawberries. The total number of fruits Karlee remains with is 36 strawberries + 60 grapes = <<36+60=96>>96 fruit #### 96