Mark constructed a deck that was 30 feet by 40 feet. It cost $3 per square foot. He then paid an extra $1 per square foot for sealant. How much did he pay?

How many square feet is the deck? ** The deck is 30*40=

<<30*40=1200>>1200 square feet How much does he pay? ** He pays 3+1=$<<3+1=4>>4 per square foot How much did he pay? ** So he paid 1200*4=$<<1200*4=4800>>4800 #### 4800 Bobby made a big batch of soup weighing 80 kg. Each day the batch gets reduced by half. How many kg will it reach on the fourth day after he made the soup? How many kg does the soup reduce down to on the first day? ** On the first day, the soup reduces down to 80/2=<<80/2=40>>40 kg. How many kg does the soup reduce down to on the second day? ** On the second day, it reduces down to 40/2=<<40/2=20>>20 kg. How many kg does the soup reduce down to on the third day? ** On the third day, it is reduced to 20/2=<<20/2=10>>10 kg. How many kg does the soup reduce down to on the fourth day? ** And on the fourth day, it is finally down to 10/2=<<10/2=5>>5 kg. #### 5 Gemma ordered four pizzas at $10 each, and she gave a $5 tip to the delivery person. How much change did she get back if she gives one fifty-dollar bill? How much did the pizzas cost? ** The cost of the four pizzas is 4 x $10 = $<<4*10=40>>40. How much did the pizzas cost in total? ** The total cost, including the tip, is $40 + $5= $<<40+5=45>>45. How much change did Gemma get back? ** Therefore, Gemma gets a change of $50 - $45 = $<<50-45=5>>5. #### 5 Team Soccer Stars plays in a soccer league. They played a total of 20 games, and won 14 games, lost 2, and drew the rest of the matches. They earn 3 points for a win, 1 point for a draw, and nothing for a loss. How many points did they have at the end of the season? How many games did Soccer Stars win and lose? ** Soccer Stars won and lost a total of 14+2 = <<14+2=16>>16 games. How many games did they draw? ** This means they drew 20 - 16 = <<20-16=4>>4 games. How many points did they earn from their wins? ** The total points from the wins are 14*3 = <<14*3=42>>42 points. How many points did they earn from their draws? ** The total points from draws are 4*1 = <<4*1=4>>4 points. How many points did they earn from their losses? ** The total points from the losses are 2 * 0 = <<2*0=0>>0 points. How many points did they have at the end of the season? ** They had 42+4+0 = <<42+4+0=46>>46 points when the season ended. #### 46 James takes a spinning class 3 times a week. He works out for 1.5 hours each class and burns 7 calories per minute. How many calories does he burn per week? How many minutes does James work out for each class? ** He works out for 1.5*60=<<1.5*60=90>>90 minutes per class How many calories does James burn per class? ** So he burns 90*7=<<90*7=630>>630 calories per class How many calories does James burn per week? ** That means he burns 630*3=<<630*3=1890>>1890 calories per week #### 1890 Jame is trying to learn to tear playing cards. He can tear 30 cards at a time. A new deck of cards has 55 cards if you include the jokers and blank cards. He tears cards 3 times a week. If he buys 18 decks how many weeks can he go? How many cards does Jame tear a week? ** He tears 30*3=<<30*3=90>>90 cards a week How many cards did Jame buy? ** He bought 55*18=<<55*18=990>>990 cards How many weeks can Jame go? ** So he can tear for 990/90=<<990/90=11>>11 weeks #### 11 Todd bought a pair of jeans that cost $125 at full price. The jeans were on sale for 20% off. He then applied a coupon that took off $10. He paid with a store credit card that gave him another 10% off the remaining amount. How many dollars did he save on the original price of the jeans? How much did the jeans cost at full price? ** The jeans were on sale for 20% = 20 / 100 = 1 /5 off, so the sale took 125 / 5 = $<<125/5=25>>25 off. How much did the jeans cost after the sale? ** Thus, after the sale, the jeans cost $125 - $25 = $<<125-25=100>>100. How much did the jeans cost after the coupon? ** Todd’s coupon lowered the price to $100 - $10 = $<<100-10=90>>90. How much did the store credit card take off? ** The store credit card gave him 10% = 10 / 100 = 1 / 10 off, so the card took $90 / 10 = $<<90/10=9>>9 off. How much did Todd pay for the jeans? ** Thus, he paid $90 - $9 = $<<90-9=81>>81 for the jeans. How many dollars did Todd save on the original price of the jeans? ** Therefore, Todd saved $125 - $81 = $<<125-81=44>>44 on the original price of the jeans. #### 44 Aria has twice as many high school credits as Emily, who has twice the number of high school credits as Spencer. If Emily has 20 credits, what's twice the total number of high school credits the three have? How many high school credits does Aria have? ** If Emily has 20 credits, and Aria has 2 times as many, then Aria has 2*20=<<20*2=40>>40 high school credits. How many high school credits does Spencer have? ** Emily has twice the number of high school credits Spencer has, meaning Spencer has 20/2=<<20/2=10>>10 high school credits. How many high school credits do the three have? ** Altogether, the three have 40 + 20 + 10=<<40+20+10=70>>70 high school credits. What's twice the total number of high school credits the three have? ** Twice the total number of high school credits the three have is 2*70=<<2*70=140>>140 #### 140 Jenny wants to read 3 books in the next 10 days. She can read 100 words per hour. If the first book has 200 words, the second book has 400 words, and the third book has 300 words, how many minutes per day, on average, should she spend reading? How many pages does Jenny want to read? ** She wants to read 200+400+300=<<200+400+300=900>>900 pages total. How many hours does Jenny need to spend reading? ** She needs to spend 900/100 = <<900/100=9>>9 hours reading in the next three weeks. How many minutes will Jenny need to spend reading? ** In minutes, she will need to spend 9*60 = <<9*60=540>>540 minutes. How many minutes per day, on average, should she spend reading? ** Thus, she should spend 540 minutes/10 days = <<540/10=54>>54 minutes per day reading. #### 54 A clothing store has an inventory of 34 ties, 40 belts, 63 black shirts, and 42 white shirts. The number of jeans in the store is two-thirds of the sum of black and white shirts, and the number of scarves is half the number of the sum of ties and belts. How many more jeans are there than scarves? How many shirts are there? ** The sum of black and white shirts is 63 + 42 = <<63+42=105>>105 How many jeans are there? ** The number of jeans in the store is (2/3) x 105 = <<(2/3)*105=70>>70 How many ties and belts are there? ** The sum of ties and belts is 34 + 40 = <<34+40=74>>74 How many scarfs are there? ** The number of scarfs in the store is 74/2 = <<74/2=37>>37 How many more jeans are there than scarfs? ** There are 70 - 37 = <<70-37=33>>33 more jeans than scarfs in the store. #### 33