How much money did you make if you sold 220 chocolate cookies at $1 per cookie and 70 vanilla cookies at $2 per cookie?

You sold 220 chocolate cookies at $1 per cookie earning 220 x 1 = $

<<220*1=220>>220 You sold 70 vanilla cookies at $2 per cookie earning 70 x 2 =$<<70*2=140>>140. In total you earned 220 + 140 = $<<220+140=360>>360 #### 360 Ryan works in an office that has an even number of men and women working there. Ryan participates in a meeting composed of 4 men and 6 women who are pulled from the office floor. This reduces the number of women working on the office floor by 20%. How many people work at Ryan's office? Since 6 women are 20% of the total number of women working there, that means there are 6*5= <<6*5=30>>30 women working there in total. Since there are an even number of women and men working in the office, that means there are 30*2= <<30*2=60>>60 people working there in total, since there are 2 sexes. #### 60 Melody needs to read 20 pages for her English class, 16 pages for her Science class, 8 pages for her Civics, and 12 pages for Chinese class. She decided to read one-fourth of the number of pages for each class tomorrow. How many pages will she read tomorrow? She will read 20 pages / 4 = <<20/4=5>>5 pages for English. She will read 16 pages / 4 = <<16/4=4>>4 pages for Science. She will read 8 pages / 4 = <<8/4=2>>2 pages for Civics. She will read 12 pages / 4 = <<12/4=3>>3 pages for Chinese. Melody will read a total of 5 pages + 4 pages + 2 pages + 3 pages = <<5+4+2+3=14>>14 pages tomorrow. #### 14 A judge oversaw seventeen court cases. Two were immediately dismissed from court. Two-thirds of the remaining cases were ruled innocent, one ruling was delayed until a later date, and the rest were judged guilty. On how many cases did the judge rule guilty? The judge dismissed 2 cases, leaving 17 - 2 = <<17-2=15>>15 cases. Of the remaining 15 cases, 2 / 3 * 15 = <<2/3*15=10>>10 were ruled innocent. One ruling was delayed, so the judge ruled guilty on 15 - 10 - 1 = <<15-10-1=4>>4 cases. #### 4 Lidia has a collection of books. Her collection is four times bigger than the collection which her friend Susan has. In total Susan and Lidia, both have 3000 books. How many books does Susan have in her collection? Let x be the number of books in Susan's collection. The collection of both Susan and Lidia would then be 4*x + x = 3000. 5*x = 3000 x = <<600=600>>600 #### 600 Pulsar, the shuffle-dancing bear, Polly, the pink prancing poodle, and Petra, the proud portly pachyderm, are entertainers at the Big Top Circus. In one show, Pulsar stands on his two back legs for a total of 10 minutes. Then, Polly stands on her back legs for three times as long as Pulsar. And then, finally, Petra stands of his back legs for one-sixth as long as Polly. What is the combined length of time, in minutes, that the three entertainers stand on their back legs? Polly stands on her back legs for 3*10=<<3*10=30>>30 minutes Petra stands on his back legs for 30/6=<<30/6=5>>5 minutes. In total, the three entertainers stand on their back legs for 10+30+5=<<10+30+5=45>>45 minutes' #### 45 Mrs. Thompson bought 3 chickens for $3 each. She also bought a bag of potatoes. Mrs. Thompson paid $15 in total. How much did the potatoes cost? The 3 chickens amount to $3 x 3 = $<<3*3=9>>9. Hence, the potatoes cost $15 - $9 = $<<15-9=6>>6. #### 6 At a party, there are 400 students, a combination of poets, singers and tree huggers. There are 50 more poets than treehuggers at the party. If the number of tree huggers is 120, how many singers are at the party? Since there are 50 more poets than treehuggers at the party, the number of poets is 120+50 =170 The number of poets and tree huggers at the party is 170+120 = <<170+120=290>>290. Since the number of attendees at the party also included singers, there are 400-290 = <<400-290=110>>110 singers. #### 110 Colston knows that his teacher loves drinking coffee and one day wants to see how much she drinks each week. He sees that she has a 20-ounce thermos and when she makes her coffee she pours a 1/2 cup of milk in, and then fills the coffee to the top. She does this twice a day. After the five-day school week, he decides to tell her, and when she hears how much coffee she drinks, she decides to drink 1/4 of what she normally drinks. How many ounces of coffee does she now drink a week? 1/2 a cup = 4 ounces Each thermos contains 16 ounces of coffee because 20 - 4 = <<20-4=16>>16 She drinks 32 ounces a day because 2 x 16 = <<2*16=32>>32 She drinks 160 ounces a week because 32 x 5 = <<32*5=160>>160 She starts drinking only 40 ounces because 160 / 4 = <<160/4=40>>40 #### 40 Big Dig Mining Company mines three different types of ore: copper, iron, and nickel. Across all their mines, 10% of their output is nickel, 60% is iron, and the rest is copper. They mine 720 tons of nickel a day. How many tons of copper does Big Dig Mining Company mine daily? Let R be the total ore output of the company. Of Big Dig’s output, 100 - 10 - 60 = <<100-10-60=30>>30% is nickel. Since 720 is 60% of 100% of their output, 720 / R = 60 / 100. Thus, Big Dig mines R = 100 * 720 / 60 = <<100*720/60=1200>>1200 tons of ore daily. Therefore, Big Dig mines 1200 * 30 / 100 = <<1200*30/100=360>>360 tons of copper daily. #### 360