While planning to finish reading a 140-page book in one week, Jessy initially decides to read 3 times daily, 6 pages each time, every day of the week. How many more pages should she read per day to actually achieve her goal?
How many pages does Jessy need to read each day? ** To achieve her goal, she must read 140/7 =
<<140/7=20>>20 pages per day How many pages did Jessy plan to read each day? ** She planned to read 3 * 6 = <<3*6=18>>18 pages daily How many more pages should she read per day to actually achieve her goal? ** She must read 20 - 18 = <<20-18=2>>2 more pages per day #### 2 Keanu's motorcycle can store 8 liters of gasoline. If his destination is 280 miles away and his motorcycle consumes 8 liters of gasoline per 40 miles, how many times does Keanu have to refill his motorcycle with gasoline if he will make a round trip? How many miles are in a round trip? ** The total number of miles for a round trip is 280 x 2= <<280*2=560>>560. How many times does Keanu have to refill his motorcycle? ** Therefore, he needs to refill his motorcycle 560/40 = <<560/40=14>>14 times. #### 14 Tracy has been collecting novels from her friends to donate to the Children For The Future charity organization. In the first week she collects a certain number of books. In the next five weeks, she collects ten times as many books as she did in the first week. How many books did she collect in the first week if she has 99 books now? How many books does Tracy have after six weeks? ** Let's say the number of books she had in the first week is x. After six weeks, Tracy has x + x*10 = 99 books. How many books does Tracy have after six weeks? ** Combining like terms, we get 11x = 99 How many books did Tracy have in the first week? ** Dividing both sides by 11, we find that the number of books Tracy had in the first week is x = 9 #### 9 OpenAI runs a robotics competition that limits the weight of each robot. Each robot can be no more than twice the minimum weight and no less than 5 pounds heavier than the standard robot. The standard robot weighs 100 pounds. What is the maximum weight of a robot in the competition? What is the minimum weight of a robot in the competition? ** the minimum is 5 more than 100 so 100+5=<<100+5=105>>105 What is the maximum weight of a robot in the competition? ** the maximum weight of a robot is twice the minimum 105*2=<<105*2=210>>210 #### 210 Marcy had 22 sodas in her fridge for a party. Her friend Tina came over and gave her 12 plus two times the number of sodas Marcy had before. How many sodas will Marcy have for the party? How many sodas did Marcy have before? ** Two times the sodas Marcy had is 22*2=<<22*2=44>>44 How many sodas did Tina give Marcy? ** Tina gave Marcy 44+12=<<44+12=56>>56 soda How many sodas will Marcy have for the party? ** In total Marcy has 22+56=<<22+56=78>>78 sodas #### 78 A hardware store sold 10 graphics cards, 14 hard drives, 8 CPUs, and 4 pairs of RAM in one week. The graphics cards cost $600 each, hard drives cost $80 each, CPUs cost $200 each, and RAM cost $60 for each pair. How much money did the store earn this week? How much money did the store earn by selling graphics cards? ** It earned 10*600 = <<10*600=6000>>6000 dollars by selling graphics cards How much money did the store earn by selling hard drives? ** It earned 14*80 = <<14*80=1120>>1120 dollars by selling hard drives How much money did the store earn by selling CPUs? ** It earned 8*200 = <<8*200=1600>>1600 dollars by selling CPUs How much money did the store earn by selling RAM? ** It earned 4*60 = <<4*60=240>>240 dollars by selling RAM How much money did the store earn this week? ** Overall it earned 6000+1120+1600+240 = <<6000+1120+1600+240=8960>>8960 dollars this week #### 8960 Madeline wants to plant 20 flowers in her garden. She assumes that about half of the seeds she plants will die before they bloom. However, the flower shop only sells packs of seeds with 25 seeds per pack. Each pack is $5. How much will Madeline spend on seeds to plant 20 flowers? How many seeds does Madeline need to plant 20 flowers? ** Madeline needs to buy 2*20=<<2*20=40>>40 seeds to make sure that she will have 20 flowers. How many packs of seeds does Madeline need to have at least 40 seeds? ** Thus, Madeline will need to buy 2 packs of flowers to have at least 40 seeds. How much will Madeline spend on seeds? ** Thus, Madeline will spend 2*5=$<<2*5=10>>10 on seeds. #### 10 Gina can paint six cups an hour with roses and 7 cups an hour with lilies. Her Etsy store gets an order for 6 rose cups and 14 lily cups. If Gina gets paid $90 total for the order, how much does she make per hour? How long does it take to paint 6 cups? ** First find the total time to paint the rose cups: 6 cups / 6 cups/hour = <<6/6=1>>1 hour How long does it take to paint 14 cups? ** Then find the total time to paint the lily cups: 14 cups / 7 cups/hour = <<14/7=2>>2 hours How long does it take to paint the cups? ** Then add the painting time for each type of cup to find the total painting time: 1 hour + 2 hours = <<1+2=3>>3 hours How much does Gina make per hour? ** Then divide Gina's total earnings by the number of hours she works to find her hourly wage: $90 / 3 hours = $<<90/3=30>>30/hour #### 30 In a Zoo, there are different animals. There are 5 giraffes and twice as many penguins. Penguins make up 20% of all the animals in the Zoo. How many elephants are there in the Zoo if they make up 4% of all the animals? How many penguins are there? ** There are twice as many penguins as giraffes, so there are 5 * 2 = <<5*2=10>>10 penguins. How many animals are there in the whole Zoo? ** The penguins make up 20% of all animals, so there are 100/20 * 10 = <<100/20*10=50>>50 animals in the whole Zoo. How many elephants are there at the Zoo? ** 4% of animals are elephants, so there are 4/100 * 50 = <<4/100*50=2>>2 elephants at the Zoo. #### 2 Two days ago, the temperature in the morning went up 1.5 degrees every 2 hours. If the temperature was 50 degrees at 3 A.M., what was the temperature at 11 A.M.? What was the temperature at 5 A.M.? ** At 5 A.M., the temperature was 50 degrees + 1.5 degrees = <<50+1.5=51.5>>51.5 degrees. What was the temperature at 7 A.M.? ** At 7 A.M., the temperature was 51.5 degrees + 1.5 degrees = <<51.5+1.5=53>>53 degrees. What was the temperature at 9 A.M.? ** At 9 A.M., the temperature was 53 degrees + 1.5 degrees = <<53+1.5=54.5>>54.5 degrees. What was the temperature at 11 A.M.? ** At 11 A.M., the temperature was 54.5 degrees + 1.5 degrees = <<54.5+1.5=56>>56 degrees. #### 56