Phantom's mom gave him $50 to buy printer-inks. At the store, he bought two black printer inks which cost $11 each, three red printer inks which cost $15 each, and two yellow printer inks which cost $13 each. Phantom found out that his money is not enough to buy all the printer inks. How much more money should he ask his mom to be able to buy the printer inks?

Black printer inks will cost him 2 x $11 = $

<<2*11=22>>22. Red printer inks will cost him 3 x $15 = $<<3*15=45>>45. And yellow printer inks will cost him 2 x $13 = $<<2*13=26>>26. The total amount he has to pay for the printer inks is $22 + $45 + $26 = $<<22+45+26=93>>93 Therefore, Phantom has to ask $93 - $50 = $<<93-50=43>>43 more from his mom to be able to buy the printer inks. #### 43 Keenan needs to write an essay that is 1200 words. Her essay is due at midnight. She writes 400 words per hour for the first two hours. After that, she writes 200 words per hour. How many hours before the deadline does she need to start to finish on time? In the first two hours, Keenan writes 800 words because 400*2=<<400*2=800>>800. After that, she still needs to write 400 words because 1200-800=<<1200-800=400>>400. Since she writes 200 words per hour, she will take 2 hours to write the last 400 words because 400/200=<<400/200=2>>2. Thus, she needs to start 4 hours before the deadline because 2+2=<<4=4>>4. #### 4 Christine and Rachel went strawberry picking. They want to make pies and need 3 pounds of strawberries per pie. Christine picked 10 pounds of strawberries and Rachel picked twice as much as Rachel. Together, how many pies can they make? Christine picked 10 pounds and Rachel picked twice as much, so Rachel picked 10*2 = <<10*2=20>>20 pounds of strawberries Christine picked 10 pounds and Rachel picked 20 pounds for a combined total of 10+20 = <<10+20=30>>30 pounds of strawberries They need 3 pounds of strawberries to make 1 pie and they have 30 pounds so they can make 30/3 = <<30/3=10>>10 strawberry pies #### 10 Aron spends 30 minutes/day three times a week vacuuming and 20 minutes/day 2 days a week dusting. How much time does he spend cleaning total each week? First find the total time Aron spends vacuuming: 30 minutes/day * 3 days/week = <<30*3=90>>90 minutes/week Then find the total time Aron spends dusting: 20 minutes/day * 2 days/week = <<20*2=40>>40 minutes/week Then add those two times to find Aron's total cleaning time per week: 90 minutes/week + 40 minutes/week = <<90+40=130>>130 minutes/week #### 130 Andrew has 2 3-hour appointments today. He spends the rest of his 8-hour workday stamping permit applications. If he can stamp 50 permit applications an hour, how many permits total does he stamp today? First find the total length of the appointments: 2 appointments * 3 hours/appointment = <<2*3=6>>6 hours Then subtract that time from the length of Andrew's workday to find how many hours he spends stamping permits: 8 hours - 6 hours = <<8-6=2>>2 hours Then multiply that number by the number of permits he can stamp per day to find how many permits he stamps: 50 permits/hour * 2 hours = <<50*2=100>>100 permits #### 100 If 12 bags of oranges weigh 24 pounds, how much do 8 bags weigh? Each bag of oranges weighs 24 pounds / 12 = <<24/12=2>>2 pounds. 8 bags of oranges would weigh 8 * 2 pounds = <<8*2=16>>16 pounds. #### 16 Steve decides to read a new book. He reads 100 pages Monday, Wed, and Friday. The book is 2100 pages long. How many weeks does it take to read them all? He reads 100*3=<<100*3=300>>300 pages a week So it would take 2100/300=<<2100/300=7>>7 weeks to read the book #### 7 Carol fills up her gas tank as she is driving home for college, which is 220 miles away. She can get 20 miles to the gallon in her car, which has a 16-gallon gas tank. How many more miles will she be able to drive after she gets home and without filling her tank again? Divide the remaining miles of the trip by the miles per gallon her car gets. 220 miles / 20 miles/gallon = <<220/20=11>>11 gallons Subtract the gallons used for the trip from the size of her gas tank. 16 gallons - 11 gallons = <<16-11=5>>5 gallons Multiply the remaining number of gallons by the car's gas mileage. 5 gallons x 20 miles/gallon = <<5*20=100>>100 miles #### 100 In a batch of 30 apples, 1/6 are too small and 1/3 are not ripe. The others are perfect. Calculate the number of perfect apples. We first calculate the proportion of all the other apples: 1/6 + 1/4 + 1/12 = 2/12 + 3/12 + 1/12 =6/12 So, the proportion of perfect apples is 12/12 - 6/12 = 6/12 = 0.5. Thus the number of perfect apples is 0.5 * 30 = <<0.5*30=15>>15 #### 15 Albert has three times as many marbles as Angela. Angela has 8 more than Allison, who has 28 marbles. How many marbles do Albert and Allison have? Angela has 8 more marbles than Allison who has 28 so Angela has 8+28 = <<8+28=36>>36 marbles Albert has three times as many marbles as Angela who has 36 so Albert has 3*36 = <<3*36=108>>108 marbles Albert and Allison together have 108+28 = <<108+28=136>>136 marbles #### 136