Crystal wanted to sell everything left in her pastry class before closing for the night. She reduced her $3.00 cupcakes and her $2.00 cookies by half. How much money did she make if she sold the last 16 cupcakes and 8 cookies?

She reduced the price of the $3.00 cupcakes by half so they are now 3/2 = $

<<3/2=1.50>>1.50 She reduced the price of the $2.00 cookies by half so they are now 2/2= $<<2/2=1.00>>1.00 She sold 16 cupcakes at $1.50 each so she made = 16*1.50 = $<<16*1.50=24.00>>24.00 She sold 8 cookies at $1.00 each so she made 8*1 = $<<8*1=8.00>>8.00 She made $24.00 from the cupcakes and $8.00 from the cookies for a total of 24+8 = $<<24+8=32.00>>32.00 #### 32 When Patrick, Manu, and Amy participate in a race they realize that Patrick finishes the race in 60 seconds. Manu took 12 more seconds to finish the race. If Amy is twice as fast as Manu, how long did it take her to finish the race? The time it took Manu to complete the race is 60 + 12 = <<60+12=72>>72 seconds If Amy is twice as fast as Manu, then she takes half the time Manu did to finish the race, so Amy took 1/2 * 72 = 36 seconds. #### 36 Susie's pet lizard Moe takes 10 seconds to eat 40 pieces of cuttlebone each day. How long would it take Moe to eat 800 pieces? If it takes Moe 10 seconds to eat 40 cuttlebones, then in one second she eats 40 cuttlebones / 10 seconds = <<40/10=4>>4 cuttlebones/second Since the cat eats 4 pieces of cuttlebone in 1 second, 800 pieces will be 800 cuttlebones / 4 cuttlebones/second = <<800/4=200>>200 seconds. #### 200 Jude bought three chairs for his house, all at the same price. He also bought a table that costs $50 and two sets of plates at $20 for each set. After giving the cashier $130, Jude got a $4 change. How much did each of the chairs cost? The two sets of plates amount to $20 x 2 = $<<20*2=40>>40. So the table and the two sets of plates amount to $50 + $40 = $<<50+40=90>>90 in all. Since Jude received a $4 change, then he paid a total of $130 - $4 = $<<130-4=126>>126 for the chairs, tables, and plates. Thus, the three chairs cost $126 - $90 = $<<126-90=36>>36. Therefore, each chair cost $36/3 = $<<36/3=12>>12. #### 12 Rubble has $15 in his pocket and he needs to buy 2 notebooks and 2 pens. Each notebook cost $4.00 meanwhile each pen cost $1.50. How much money will be left from Rubble after the purchase? The total cost of two notebooks is $4.00 x 2 = $<<4*2=8.00>>8.00. The total cost of two pen $1.50 x 2 = $<<1.5*2=3.00>>3.00. So, the total amount Rubble spent for all the stuff was $8.00 + $3.00 = $<<8+3=11.00>>11.00. Therefore, Rubble was left off with $15.00 - $11.00 = $<<15-11=4.00>>4.00. #### 4 John is budgeting for his marriage. The venue cost $10,000. It cost $500 for each guest, and John wants 50 guests while his wife wants 60% more than that. How much would the wedding cost if John's wife gets her way? The bride wanted 50*.6=<<50*.6=30>>30 more guests than the husband So the bride wanted 50+30=<<50+30=80>>80 guests So the guests cost 80*$500=$<<80*500=40000>>40000 So the total cost was $40000+$10,000=$<<40000+10000=50000>>50000 #### 50000 Tom decided to go on a trip. During this trip, he needs to cross a lake, which in one direction takes 4 hours. During this time, Tom needs an assistant to help him with the crossing. Hiring an assistant costs $10 per hour. How much would Tom have to pay for help with crossing the lake back and forth? Crossing the lake two times (back and forth) would take 4 * 2 = <<4*2=8>>8 hours. So Tom would need to pay an assistant 8 * 10 = $<<8*10=80>>80. #### 80 Remi wants to drink more water. He has a refillable water bottle that holds 20 ounces of water. That week Remi refills the bottle 3 times a day and drinks the whole bottle each time except for twice when he accidentally spills 5 ounces the first time and 8 ounces the second time. In 7 days how many ounces of water does Remi drink? Remi drinks the same amount of water every day for a week except for when he spills some of it. His water bottle holds 20 ounces which he drinks 3 times a day, 20 x 3 = <<60=60>>60 ounces a typical day. Over 7 days, without spilling anything, Remi drinks 60 ounces x 7 days = <<60*7=420>>420 ounces. Except Remi spills 8 + 5 ounces of water during the week = <<8+5=13>>13 ounces of water Remi spills. Total, Remi drinks 420 ounces - 13 ounces of spilled water = <<420-13=407>>407 ounces Remi drank during the week. #### 407 Dr. Jones earns $6,000 a month. His house rental is $640 each month; his monthly food expense is $380; his electric and water bill costs 1/4 of what he makes, and his insurances cost 1/5 of what he makes. How much money does he have left after paying those four bills? Dr. Jones pays $6000 / 4 =$ <<6000/4=1500>>1500 for his electric and water bill. He pays $6000 / 5 = $<<6000/5=1200>>1200 for his insurances. The total amount he pays for the bills and insurances is $1500 + $1200 = $<<1500+1200=2700>>2700. The remaining money from his earning after paying off the bills and insurance is $6000 - $2700 = $<<6000-2700=3300>>3300. The total amount he needs to pay for the rent and food expenses is $640 + $380 = $<<640+380=1020>>1020. So, Dr. Jones has $3300 - $1020 = $<<3300-1020=2280>>2280 left #### 2280 Maria's test scores are 80, 70, and 90. What score does she need to get on a fourth test so that her average score for the four tests is exactly 85? She needs to have a total of 4*85=<<4*85=340>>340 points over the four tests. She has 80+70+90=<<80+70+90=240>>240 points so far. She needs 340-240=<<340-240=100>>100 on the fourth test. #### 100