Elvis is releasing a new album with 10 songs, but he doesn't want to waste too much time on writing. He spends 5 hours in the studio, where he writes, records, and edits his songs. Each song takes 12 minutes to record, then it takes 30 minutes to edit all of his songs. How many minutes did it take Elvis to write each song, if each song took the same amount of time to write?

How many minutes did Elvis spend in the studio? ** 5 hours in the studio is the same as 5 * 60 =

<<5*60=300>>300 minutes. How many minutes did it take Elvis to record all of his songs? ** To record all of his songs, Elvis takes 12 * 10 = <<12*10=120>>120 minutes. How many minutes are left to write all of his songs? ** After editing and recording 300 – 120 – 30 = <<300-120-30=150>>150 minutes are left to write all of his songs. How many minutes did it take Elvis to write each song, if each song took the same amount of time to write? ** Songwriting therefore took 150 / 10 = <<150/10=15>>15 minutes per song. #### 15 Teresa scored 70 marks in science, 80 in music, 85 in social studies, and the physics exam, which was the hardest test that Teresa had ever taken in her entire life, she scored half as many marks as she scored in music. Calculate the total marks Teresa scored in all the subjects. How many marks did Teresa score in science and music? ** The total marks of science and music are 70+80 = <<70+80=150>>150 How many marks did Teresa score in all the subjects? ** When you add the marks she scored in social studies, the full marks become 150+85 = <<150+85=235>>235. How many marks did Teresa score in physics? ** She scored half as many marks in physics as she scored music, totaling 1/2*80 = 40 marks. How many marks did Teresa score in all the subjects? ** When you add the marks she scored in physics to the total marks of the other subjects, the full marks become 235+40 = <<235+40=275>>275 #### 275 Brian likes to read books. He read one book that had 20 chapters, two books that had 15 chapters each, and one book that had half the chapters of the three previous books put together. How many chapters of books did Brian read? How many chapters did Brian read? ** Brian read two books with 15 chapters, so he read 2*15=<<2*15=30>>30 chapters. How many chapters did Brian read? ** He also read a book with 20 chapters, bringing the total for the first three to 30+20=<<30+20=50>>50 chapters. How many chapters did Brian read? ** He then read a book with half the chapters of his cumulative total so far, so it had 50/2=<<50/2=25>>25 chapters How many chapters did Brian read? ** In total, he read 30+20+25=<<30+20+25=75>>75 chapters. #### 75 Ruth is counting the number of spots on her cow. The cow has 16 spots on its left side and three times that number plus 7 on its right side. How many spots does it have total? How many spots are on the left side? ** First multiply the number of spots on the left side by 3: 16 spots * 3 = <<16*3=48>>48 spots How many spots are on the right side? ** Then add 7 to find the number of spots on the right side: 48 spots + 7 spots = <<48+7=55>>55 spots How many spots does the cow have total? ** Then add the number of spots on each side to find the total number of spots: 55 spots + 16 spots = <<55+16=71>>71 spots #### 71 Matt orders 15 pounds of beef. He cuts that into 12-ounce steaks. How many steaks does he get? How many ounces of steak does Matt buy? ** He buys 15*16=<<15*16=240>>240 ounces of steak How many steaks does Matt buy? ** That means he buys 240/12=<<240/12=20>>20 steaks #### 20 Jennifer will be 30 years old in ten years. At that time, her sister Jordana will be three times as old Jennifer. How old is Jennifer's sister now? How old will Jordana be in ten years? ** When Jennifer is 30 years old in ten years, her sister Jordana will be 3*30=90 years old. How old is Jordana now? ** She's currently 10 years younger, so she's 90 - 10 = 80 years old #### 80 Merry had 50 boxes of apples on Saturday and 25 boxes on Sunday. There were 10 apples in each box. If she sold a total of 720 apples on Saturday and Sunday, how many boxes of apples are left? How many boxes of apples did Merry have? ** Merry had a total of 50 + 25 = <<50+25=75>>75 boxes of apples. How many apples were in the boxes? ** These 75 boxes is equal to 75 x 10 = <<75*10=750>>750 apples. How many apples were left? ** There were 750 - 720 = <<750-720=30>>30 apples left. How many boxes of apples are left? ** Thus, 30/10 = <<30/10=3>>3 boxes of apples are left. #### 3 A taco truck buys 100 pounds of beef. They use .25 pounds of beef per taco. If they sell each taco for $2 and each taco takes $1.5 to make how much profit did they make if they used all the beef? How many tacos did they make? ** They made 100/.25=<<100/.25=400>>400 tacos How much profit does each taco give? ** Each taco gives a profit of 2-1.5=$<<2-1.5=.5>>.5 How much profit did they make? ** So they made a profit of 400*.5=$<<400*.5=200>>200 #### 200 A man owned 1/2 of a lot. He sold 1/10 of his share for the amount of $460. What is the worth of the entire lot? How much is the man's land worth? ** If 1/10 of the man's lot is equal to $460, then the man's land is worth $460 x 10 = $<<460*10=4600>>4600. What is the worth of the entire lot? ** Since 1/2 of the whole lot is worth $4600, then the whole lot is worth $4600 x 2 = $<<4600*2=9200>>9200. #### 9200 Sarah wants to start a cupcake business and was approved for a business loan. The loan has 0% interest if she pays the entire amount back in 5 years, which she decides to do. If she put $10,000 down as a down payment and her monthly payments are $600.00, how much was her loan for (including the down payment)? How many months will she make payments? ** To avoid interest she'll make payments for 5 years. There are 12 months in 1 year so that's 5*12 = <<5*12=60>>60 months How much will her monthly payments be? ** Each monthly payment is $600.00 and she'll pay that for 60 months for a total of 600*60 = $<<600*60=36000>>36,000 How much was her loan for (including the down payment)? ** She also put $10,000 down as a down payment and her monthly payments came out to $36,000 so her loan was for 10000+36000 = $<<10000+36000=46000>>46,000 #### 46000