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Terry spent 6$ for breakfast on Monday, twice as much on Tuesday, and on Wednesday Terry spent double what he did the previous two days combined. How much did Terry spend total?
Monday: <<6=6>>6$ Tuesday:6(2)=12$ Wednesday:2(6+12)=36$ Total:6+12+36=<<6+12+36=54>>54$ #### 54
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Grace is filling her pool in the backyard with a hose that sprays 50 gallons/hour. She waited for 3 hours but the pool wasn't full, so she decides to add another hose that sprays 70 gallons/hour, and after 2 more hours the pool is full. How much water can Grace鈥檚 pool contain?
In the first 3 hours the pool gets 50 gallons/hour x 3 hours = <<50*3=150>>150 gallons With the addition of the other hose, the pool was filling with a rate of 50 gallons/hour + 70 gallons/hour = <<50+70=120>>120 gallons/hour In the next 2 hours with both hoses the pool gets 120 gallons/hour x 2 hours = <<120*2=240>>240 gallons The pool's total capacity is 240 gallons + 150 gallons = <<240+150=390>>390 gallons #### 390
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Tomas is hoping to run a marathon next year, which is 26.3 miles. He knows that each month he trains, he can run twice as far as the month before. If he can run 3 miles during the first month of training, how many total months before the marathon should he start training to ensure he can run far enough?
In the first month he can run 3 miles. In the second month he can run 6 miles because 3 x 2 = <<3*2=6>>6 In the third month he can run 12 miles because 6 x 2 = <<6*2=12>>12 In fourth month he can run 24 miles because 12 x 2 = <<12*2=24>>24 In fifth month he can run 48 miles because 24 x 2 = <<24*2=48>>48 He needs to start training 5 months ahead of time because 24 < 26.3 and 48>26.3. #### 5
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A baker is making bread according to a recipe that requires him to use 3 eggs for every 2 cups of flour. If the baker wants to use up the 6 cups of flour he has remaining in his pantry, how many eggs will he need to use?
If he uses 6 cups of flour, the baker will be making 6/2 = <<6/2=3>>3 times the normal amount that the recipe describes. Thus, he must use 3*3 = <<3*3=9>>9 eggs. #### 9
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Carl has a jar full of marbles. He takes out 12 marbles to play a game with, but he accidentally drops them and 1/2 the marbles get lost. So Carl takes out 10 more marbles. While he is playing his game his mother comes home with another bag of marbles for him, which has 25 marbles in it. If Carl can't find his lost marbles, then how many marbles is he going to put in the jar after he plays his game, from both his original marbles and the new ones?
Carl starts with 12 marbles to play with but loses 1/2, 12 / 2 = <<12/2=6>>6 marbles Carl didn't lose. Carl takes out 10 more marbles, 6 + 10 = <<6+10=16>>16 marbles. Then Carl's mother brings him 25 new marbles to add to the 16 he has out of his jar, 25 + 16 = <<25+16=41>>41 marbles that Carl is going to put in his jar after he plays his marbles game. #### 41
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A gallon of whole milk that normally costs $3 is now sold at $2. A box of cereal was sold at a discount of $1. How much will you save via discounts if you buy 3 gallons of whole milk and 5 boxes of cereal?
The discount for each gallon of whole milk is $3 - $2 = $<<3-2=1>>1. So the discount for 3 gallons of whole milk is $1/gallon x 3 gallons = $<<1*3=3>>3. The total discount for 5 boxes of cereal is $1/box x 5 boxes = $<<1*5=5>>5. You will save $3 + $5 = $<<3+5=8>>8 for 3 gallons of whole milk and 5 boxes of cereal. #### 8
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Basil gets 1/2 of a dog cookie in the morning and before bed. She gets 2 whole cookies during the day. Basil鈥檚 cookies are packaged with 45 cookies per box. How many boxes will she need to last her for 30 days?
Basil gets 1/2 in the morning and 1/2 at bedtime so she gets 1/2+1/2 = <<1/2+1/2=1>>1 whole cookie Basil also gets 2 whole cookies during the day so all total she gets 2+1 =<<2+1=3>>3 whole cookies She needs cookies for 30 days and eats 3 a day so she needs 30*3 = <<30*3=90>>90 cookies Her cookies come 45 per box and she needs 90 cookies so she needs 90/45 = <<90/45=2>>2 boxes of cookies #### 2
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Alyana has a pizza that is cut into 16 slices. After she and her friends finish eating, there are 4 slices left. If each of them ate 2 slices of pizza, how many people ate the pizza?
16 - 4 = <<16-4=12>>12 slices of pizza were eaten. So there were 12/2 = <<12/2=6>>6 people eating the pizza. #### 6
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It takes David 10 minutes to wash 4 windows. David's house has 64 windows. How many minutes will it take David to wash all of the windows?
It takes 10 minutes to wash 4 windows and he has 64 windows so that breaks down to 64/4 = 16 units It takes 10 minutes to wash a unit of windows and he has 16 units so 10*16 = <<10*16=160>>160 minutes #### 160
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There are 20 hands in Peter鈥檚 class, not including his. Assume every student in the class has 2 arms and 2 hands. How many students are in Peter鈥檚 class including him?
There are 20 + 2 of Peter鈥檚 hands = <<20+2=22>>22 hands in Peter鈥檚 class including his There are 22 hands / 2 hands per student = <<22/2=11>>11 students #### 11
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