Sheena is sewing the bridesmaid’s dresses for her sister’s wedding. She can sew one dress in 12 hours. There are 5 bridesmaids in the wedding. If Sheena sews the dresses 4 hours each week, how many weeks will it take her to complete them?

How many hours will it take Sheena to sew the dresses? ** It will take Sheena 12 hours x 5 bridesmaids =

<<12*5=60>>60 hours to sew the dresses. How many weeks will it take her to complete them? ** It will take her 60 hours / 4 hours = <<60/4=15>>15 weeks. #### 15 Bridge and Sarah have $3 between them. If Bridget has 50 cents more than Sarah, how many cents does Sarah have? Define a variable ** Let X be the amount of money Sarah has, so Bridget has X + 50 cents Write an equation ** We know that Sarah and Bridget combined have $3, or 300 cents, so X + X + 50 = 300 Simplify ** We therefore know that 2X = 250 How many cents does Sarah have? ** So Sarah has 250 / 2 = <<250/2=125>>125 cents #### 125 Mitzi brought $75 to the amusement park. She spent $30 on a ticket, $13 on food, and $23 on a T-shirt. How much money does she have left? How much money did Mitzi spend? ** Mitzi spent a total of $30 + $13 + $23 = $<<30+13+23=66>>66. How much money does Mitzi have left? ** So she still has $75 - $66 = $<<75-66=9>>9 left. #### 9 If a rectangle has a width of 42 inches and an area of 1638, how many rectangles of the same size would reach a length of 390 inches? How many inches is the rectangle? ** The rectangle has a length of 1638 in/ 42in = <<1638/42=39>>39 in. How many rectangles are required? ** The number of rectangles required to reach 390 inches is 390/39 = <<390/39=10>>10 rectangles. #### 10 A camping site recorded a total of 150 campers for the past three weeks. Two weeks ago, there were 40 campers which was 10 more than the number of campers three weeks ago. How many campers were there last week? How many campers were there three weeks ago? ** Three weeks ago, there were 40 - 10 = <<40-10=30>>30 campers. How many campers were there from three to two weeks ago? ** The total number of campers from three to two weeks ago is 30 + 40 = <<30+40=70>>70. How many campers were there last week? ** Hence, there were 150 - 70 = <<150-70=80>>80 campers last week. #### 80 George had $100. He bought a shirt for $24 and he also bought a pair of socks. Then he had $65 left. How much is a pair of socks? How much money did George have after buying a shirt? ** George had $100 - $24 = $<<100-24=76>>76 left after buying a shirt. How much does a pair of socks cost? ** Since he has $65 left after buying a pair of socks, then a pair of socks costs $76 - $65 = $<<76-65=11>>11. #### 11 Brian loves watching animal videos online. He watches a 4-minute video of cats. He then watches a video twice as long as the cat video involving dogs. He finishes up his video watching for the day by watching a video on gorillas that's twice as long as the previous two videos combined. How many minutes does Brian spend watching animal videos? How long is the second video? ** Brian begins by watching a 4-minute video, and since the second video is twice as long that means the second video is 4*2= <<4*2=8>>8 minutes. How long are the first two videos combined? ** The first two videos combined therefore for a 4+8=<<4+8=12>>12 minute run time. How long is the third video? ** Since the third video is twice as long as the first two videos put together, that means it is 12*2=<<12*2=24>>24 minutes in length. How many minutes does Brian spend watching animal videos? ** The total length of time spent is therefore 24+12= <<24+12=36>>36 minutes #### 36 Carl has a goal of selling 96 cupcakes in 2 days. Carl needs to give 24 cupcakes to Bonnie as payment for using her storefront. How many cupcakes must Carl sell per day to reach his goal? How many cupcakes does Carl need to sell? ** Carl needs to sell 96 cupcakes + 24 cupcakes = <<96+24=120>>120 cupcakes total. How many cupcakes does Carl need to sell per day? ** Each day Carl needs to sell 120 cupcakes / 2 days = <<120/2=60>>60 cupcakes to reach his goal. #### 60 Rebecca runs a hair salon. She charges $30 for haircuts, $40 for perms, and $60 for dye jobs, but she has to buy a box of hair dye for $10 to dye every head of hair. Today, she has four haircuts, one perm, and two dye jobs scheduled. If she makes $50 in tips, how much money will she have in dollars at the end of the day? How much money will Rebecca make from haircuts? ** Rebecca will make 30 * 4 = $<<30*4=120>>120 from haircuts today. How much money will Rebecca make from dye jobs? ** She will make 60 * 2 = $<<60*2=120>>120 from dye jobs. How much money will Rebecca spend on hair dye? ** She will spend 10 * 2 = $<<10*2=20>>20 on hair dye. How much money will Rebecca have at the end of the day? ** With the $40 perm and tips, at the end of the day, Rebecca will have 120 + 120 + 40 - 20 + 50 = $<<120+120+40-20+50=310>>310. #### 310 John sends his son to prep school. It cost $20,000 per semester. There are 2 semesters in the year. How much does it cost to send the kid to 13 years of school? How much does it cost to send the kid to 13 years of school? ** It cost 20000*2=$<<20000*2=40000>>40,000 a year How much does it cost to send the kid to 13 years of school? ** So it cost 40,000*13=$<<40000*13=520000>>520,000 #### 520,000