Stella wanted to buy a new dress for the upcoming dance. At the store she found out that the dress she wanted was $50. The store was offering 30% off of everything in the store. What was the final cost of the dress?

How much was the discount? ** The dress was $50 and 30% off so 50*.30 = $

<<50*.30=15>>15 discount price How much did the dress cost? ** The dress cost $50 minus $15 (30% off discount) so 50-15 = $<<50-15=35>>35 #### 35 Joe plays a soccer tournament with his team. Matches won score 3 points for the winning team and tied matches score 1 point for both teams. Joe and his team won 1 game and drew 3. The first-place team has won 2 games and tied 2. By how many points did the first-place team beat Joe's team? How many points did Joe's team score for 1 match won? ** For 1 match won, Joe's team scored 1 * 3 = <<1*3=3>>3 points. How many points did Joe's team score for 3 tied games? ** For 3 tied games, Joe's team scored 3 * 1 = <<3*1=3>>3 points. How many points did Joe's team score in total? ** In total, Joe's team scored 3 + 3 = <<3+3=6>>6 points. How many points did the first-place team score for 2 games won? ** For 2 games won, the first-place team scored 2 * 3 = <<2*3=6>>6 points How many points did the first-place team score for 2 tied games? ** For 2 tied games, the first-place team scored 2 * 1 = <<2*1=2>>2 points How many points did the first-place team score in total? ** In total, the first-place team scored 6 + 2 = <<6+2=8>>8 points. How many points did the first-place team beat Joe's team by? ** The first-place team outscored Joe's team by 8 - 6 = <<8-6=2>>2 points. #### 2 There are 20 students in the class. Half of them play basketball. Two-fifths play volleyball and one-tenth play both basketball and volleyball. How many students in this class do not play either game? How many students play basketball? ** Half of the students are playing basketball, which means 20 / 2 = <<20/2=10>>10 students play basketball. How many students play volleyball? ** Two-fifths plays volleyball, which leaves us with 20 * 2/5 = <<20*2/5=8>>8 students. How many students play both games? ** One-tenth play both games, which means 20 * 1/10 = <<20*1/10=2>>2 students. How many students play basketball or volleyball? ** There are 10 + 8 = <<10+8=18>>18 students who play basketball or volleyball. How many students play only one of the two games? ** Among these 18 students, 2 of them are playing both games, so that means 18 - 2 = <<18-2=16>>16 students play only one of the two games. How many students do not play either game? ** So finally, 20 - 16 = <<20-16=4>>4 students do not play either game. #### 4 Lloyd, Mark, and Michael have their Pokemon cards collection. Currently, Mark has thrice as many cards as Lloyd but has 10 fewer cards than Michael. If Michael has 100 cards now, how many more cards should they collect so that all three of them will have a total of 300 cards? How many cards does Mark have? ** Mark has 10 fewer cards than Michael so Mark has 100 cards - 10 cards = 90 cards. How many cards does Lloyd have? ** So, Lloyd has 90 cards / 3 = <<90/3=30>>30 cards. How many cards do all three of them have? ** All three of them have 90 cards + 30 cards + 100 cards = <<90+30+100=220>>220 cards. How many more cards should they collect so that all three of them will have a total of 300 cards? ** Thus, they need to collect 300 cards - 220 cards = <<300-220=80>>80 more cards. #### 80 Jean has 3 grandchildren. She buys each grandkid 2 cards a year and puts $80 in each card. How much does she give away to grandchildren a year? How much does each grandchild get? ** Each grandchild gets 2*80=$<<2*80=160>>160 a year How much do they get in total? ** So that means they get a total of 3*160=$<<3*160=480>>480 #### 480 While Paul watches movies, he runs on his treadmill. He can run a mile in 12 minutes. He watches two movies, which are an average length of 1.5 hours. How many miles does he run? How many hours does he run? ** He runs for 3 hours because 2 x 1.5 = <<2*1.5=3>>3 How many minutes does he run? ** He runs for 180 minutes because 3 x 60 = <<3*60=180>>180 How many miles does he run? ** He runs 15 miles because 180 / 12 = <<180/12=15>>15 #### 15 Javier is selling donuts to raise money for a new game. He wants to raise $96. He buys each dozen donuts for $2.40 and then sells each donut for $1. How many dozen donuts does he need to buy and sell to reach his goal? How much does each donut cost? ** Every donut costs him $.2 because 2.4 divided by 12 equals <<2.4/12=.2>>.2 How much does each donut sell for? ** So he makes $.8 for every donut he sells because $1 minus $.2 equals .8 How many donuts does Javier need to sell? ** He needs to sell 120 donuts because 96 divided by .8 equals <<96/.8=120>>120. How many dozen donuts does Javier need to buy and sell? ** He needs to buy and sell 10 dozen donuts because 120 divided by 12 equals <<120/12=10>>10 #### 10 Kylie has 5 daisies. Her sister gave her another 9 daisies. Kylie then gave half her daisies to her mother. How many daisies does Kylie have left? How many daisies did Kylie have? ** Kylie had 5 + 9 = <<5+9=14>>14 daisies. How many daisies does Kylie have left? ** She has 14/2 = <<14/2=7>>7 daisies left. #### 7 Jon buys 2 coffees a day from his favorite coffee shop. They cost $2 each. How much does he spend in April? How much does Jon spend in April? ** He spends 2*$2=$<<2*2=4>>4 per day How much does Jon spend in April? ** April has 30 days so he spends $4*30=$<<4*30=120>>120 #### 120 Ruby is taking dance lessons. They cost $75 for 10 classes in one pack. She can add additional classes at the price of 1/3 more than the average price of a class on the lesson in the pack. if she takes 13 total classes, how much does she pay? How much do the classes in the pack cost? ** The classes in the pack cost $7.5 each because 75 / 10 = <<75/10=7.5>>7.5 How much does an additional class cost? ** An additional class costs $10 because 7.5 x (1 +(1/3)) = <<7.5*(1+(1/3))=10>>10 How many additional classes does Ruby buy? ** She buys 3 extra classes because 13 - 10 = <<13-10=3>>3 How much do her additional classes cost? ** Her three additional classes cost $30 because 3 x 10 = <<3*10=30>>30 How much does Ruby pay in total? ** Her total cost is $105 because 75 + 30 = <<75+30=105>>105 #### 105