Beth is looking at her book collection and is wondering how many comic books she owns. She has 120 books and 65% are novels. 18 are graphic novels. The rest are comic books. What percentage of comic books does she own?

How many graphic novels are there? ** The proportion of graphic novels is .15 because 18 / 120 =

<<18/120=.15>>.15 How many graphic novels are there? ** The percentage of graphic novels is 15 because 100 x .15 = <<100*.15=15>>15 How many comic books are there? ** The percentage of comic books is 20 because 100 - 65 - 15 = <<100-65-15=20>>20 #### 20 Hadassah took six hours to paint 12 paintings. What would be the total time she's taken to finish all the paintings if she paints 20 more paintings? How many paintings does Hadassah paint in an hour? ** If it took Hadassah six hours to paint 12 paintings, then she paints 12/6 = <<12/6=2>>2 paintings in an hour. How many hours will it take to paint 20 more paintings? ** If two paintings take an hour to complete, 20 paintings will take 20/2 = <<20/2=10>>10 hours. How many hours did Hadassa take to finish all the paintings? ** The total time she took to finish all the paintings is 10+6 = <<10+6=16>>16 hours. #### 16 Jimmy and Tonya both like collecting matchbooks and stamps. Tonya and Jimmy decide to trade some stamps and matchbooks. They have each decided that one stamp is worth 12 matches. Each matchbook contains 24 matches. If Tonya arrives with 13 stamps, Jimmy has 5 matchbooks, and Jimmy trades all his matchbooks for stamps, how many stamps does Tonya have left? How many matches does Jimmy have? ** Jimmy has 120 matches because 5 times 24 equals <<5*24=120>>120. How many stamps does Jimmy trade for? ** Jimmy trades this for 10 stamps because 120 divided by 12 equals <<120/12=10>>10 How many stamps does Tonya have left? ** Tonya has 3 stamps left because 13 minus 10 equals <<13-10=3>>3. #### 3 A dragon hoards jewels and gold in its cave. A jealous king snuck in and stole three prize jewels. The dragon burned him to a crisp and stole back its jewels, along with twice as many of the king’s crown jewels from his crown that melted in the dragon’s fire. The new jewels were a third of the number of jewels the dragon had owned before. How many jewels did the dragon own in the end? How many crown jewels did the dragon steal? ** The dragon stole 2 * 3 = <<2*3=6>>6 of the king’s crown jewels. How many jewels did the dragon own before the theft? ** The dragon owned 6 * 3 = <<6*3=18>>18 jewels before the theft. How many jewels did the dragon own in the end? ** Thus, the dragon owned 18 + 6 = <<18+6=24>>24 jewels in the end. #### 24 A total of 107 oranges are picked by Del and Juan. Del picked 23 on each of 2 days and Juan picked the rest. How many oranges did Juan pick? How many oranges did Del pick in total? ** Del = 23 * 2 = <<23*2=46>>46 oranges How many oranges did Juan pick? ** 107 - 46 = <<107-46=61>>61 oranges How many oranges did Juan pick? ** Juan picked <<61=61>>61 oranges. #### 61 Wade has called into a rest stop and decides to get food for the road. He buys a sandwich to eat now, one for the road, and one for in the evening. He also buys 2 drinks. If the drinks cost $4 each and Wade spends a total of $26 then how much, in dollars, did the sandwiches each cost? How much do the drinks cost? ** The drinks cost a total of $4 per drink * 2 drinks = $<<4*2=8>>8. How much did the sandwiches cost? ** So the sandwiches cost a total of $26 total spending - $8 spending on drinks = $<<26-8=18>>18. How much did each sandwich cost? ** Therefore, each sandwich costs $18 for sandwiches / 3 sandwiches = $<<18/3=6>>6. #### 6 A store gives a 10% discount for the amount of the sell that was over $1000. John buys 7 items that each cost $200. What does his order cost after the discount? How much did John's order cost? ** His order came out to 7*200=$<<7*200=1400>>1400 How much did John's order cost after the discount? ** So there was 1400-1000=$<<1400-1000=400>>400 that qualified for the discount How much did John's discount save? ** So his discount saved 400*.1=$<<400*.1=40>>40 How much did John's purchase cost? ** So his purchase came out to 1400-40=$<<1400-40=1360>>1360 #### 1360 Nadine's dog rolls around in the mud. She spends 10 minutes hosing him off outside, then shampoos him three times, which takes 15 minutes per shampoo. How long does she spend cleaning her dog total? How long does it take to shampoo the dog? ** First find the total shampoo time: 15 minutes/shampoo * 3 shampoos = 45 minutes How long does it take to clean the dog? ** Then add the hosing off time to find the total cleaning time: 45 minutes + 10 minutes = <<45+10=55>>55 minutes #### 55 Amiyah is cutting some trees to build a cow shade. For every tree she cuts, she plants 5 new trees. If there were 400 trees on her farm and she cut 20% of them, calculate the total number of trees on the farm. How many trees did Amiyah cut? ** The number of trees that Amiyah cut is 20/100*400 = <<20/100*400=80>>80 How many trees are left on the farm? ** The number of trees remaining on the farm after she cut 80 trees is 400-80 = <<400-80=320>>320 How many new trees did Amiyah plant? ** For every tree that Amiyah cut, she plants 5 new trees, and since she cut 80 trees, she planted 80*5 = <<80*5=400>>400 new trees. What is the total number of trees on the farm? ** The total number of trees on the farm is now 320+400 = <<320+400=720>>720 trees. #### 720 Dream's car consumes 4 gallons of gas per mile. If she drives 400 miles today and 200 more miles tomorrow than today, how many gallons of gas will the car consume? How many gallons of gas does the car consume today? ** If she drives 400 miles today, the car will have consumed 4*400 = <<400*4=1600>>1600 gallons of gas. How many miles will she drive tomorrow? ** Tomorrow, if she drives 200 more miles, the total distance will be 200+400 = <<200+400=600>>600 miles. How many gallons of gas will the car consume tomorrow? ** The fuel consumption by the car tomorrow is 4*600 = <<4*600=2400>>2400 gallons. How many gallons of gas will the car consume in the two days? ** The car's total fuel consumption in the two days is 2400+1600 = <<2400+1600=4000>>4000 gallons. #### 4000