Compared to the amount of water she drank, Carla drank three times as much soda minus 6 ounces. If she drank 54 ounces of liquid total, how much water did she drink?

Let s be the amount of soda Carla drank and w be the amount of water she drank. We know that s + w = 54 and s = 3w - 6. Substituting the second equation into the first, we get 3w - 6 + w = 54.

Combining like terms, we get 4w - 6 = 54

Adding 6 to both sides, we get 4w = 60

Dividing both sides by 4, we get w = 15

#### 15

Xavier needs 84 paper plates for a housewarming party. He already has 21 green plates and 28 red plates. How many more plates should Xavier buy?

The total number of green and red plates is 28 + 21 =

<<28+21=49>>49. Xavier should buy 84 − 49 = 35 more plates. #### 35 Every 10 seconds, there is a car collision, and every 20 seconds there is a big crash. How many accidents overall will happen in 4 minutes? 1 minute is 60 seconds, so 4 minutes is 4 * 60 = <<4*60=240>>240 seconds. During this time there would be 240 / 20 = <<240/20=12>>12 big crashes. And also 240 / 10 = <<240/10=24>>24 car collisions. So in total during 4 minutes there would be 12 + 24 = <<12+24=36>>36 accidents. #### 36 Zack has traveled to twice the number of countries Patrick traveled to. Patrick traveled to three times the number of countries Joseph traveled to. Joseph traveled to half the number of countries George traveled to. If George traveled to 6 countries, how many countries did Zack travel to? Joseph traveled to 6 / 2 = <<6/2=3>>3 countries. Patrick traveled to 3 * 3 = <<3*3=9>>9 countries. So, Zack traveled to 2 * 9 = <<2*9=18>>18 countries. #### 18 Christian and Sue wanted to get a $50.00 bottle of perfume for their mom for her birthday. Christian had $5.00 saved up and Sue had $7.00. Christian then mowed 4 of his neighbors' yards, charging $5.00 each, while Sue walked 6 dogs for her neighbors, charging $2.00 per dog. How much more money will Christian and Sue need to make in order to buy the bottle of perfume for their mom? Christian just mowed 4 yards at $5.00 each so he made 4*5 = $<<4*5=20.00>>20.00 Sue just walked 6 dogs at $2.00 each so she made 6*2 = $<<6*2=12.00>>12.00 Christian had $5.00 saved and just made $20.00 while Sue had $7.00 saved and just made $12.00 so together they had 5+20+7+12 = $<<5+20+7+12=44>>44 The perfume cost $50.00 and they had $44.00 so they needed to make 50-44 = $<<50-44=6.00>>6.00 more dollars #### 6 Betty and Dora started making some cupcakes at the same time. Betty makes 10 cupcakes every hour and Dora makes 8 every hour. If Betty took a two-hour break, what is the difference between the number of cupcakes they made after 5 hours? Dora made 8 cupcakes per hour for 5 hours for a total of 8*5 = <<8*5=40>>40 cupcakes Betty took a 2-hour break so she spent 5-2 = <<5-2=3>>3 hours making cupcakes Betty made 10 cupcakes per hour for 3 hours for a total of 10*3 = <<10*3=30>>30 cupcakes The difference between the number of cupcakes they made is 40-30 = <<40-30=10>>10 cupcakes #### 10 A clerk can process 25 forms per hour. If 2400 forms must be processed in an 8-hour day, how many clerks must you hire for that day? One clerk can process 25 x 8 = <<25*8=200>>200 forms in a day. To process the forms for that day 2400/200 = <<2400/200=12>>12 clerks must be hired. #### 12 The total number of dogs at an animal rescue center is 200. Mr. Tanner, the manager at the rescue center, gets a call that 100 dogs at another rescue center are to be moved because of weather problems. He agrees to bring the dogs to his rescue center, and after one week, gives out 40 animals for adoption. After a month, 60 more dogs were adopted by dog lovers. What's the total number of remaining animals in the adoption center after the last adoptions? After taking in 100 more dogs, the number of dogs in the rescue center increased to 200+100 = 300. After a week, the number of dogs was reduced to 300 - 40 = <<300-40=260>>260 after the adoptions. So, there are 260 - 60 = 200 dogs left after 60 more dogs were adopted. #### 200 Adam owns a wood carving shop, if a block of basswood can create 3 figurines and a block of butternut wood can create 4 figurines, and a block of Aspen wood can make twice the amount of figurines compared to basswood, how many figurines can he make if he owns 15 blocks of basswood, 20 blocks of butternut wood, and 20 blocks of Aspen wood? Adam can make 15 x 3 = <<15*3=45>>45 figurines out of the blocks of basswood. He can also make 3 x 2 = <<3*2=6>>6 figurines out of a block of Aspen wood. So, he can make 20 x 6 = <<20*6=120>>120 figurines out of all the blocks of Aspen wood. He can also make 20 x 4 = <<20*4=80>>80 figurines out of all the blocks of butternut wood. Therefore, Adam can make a total of 120 + 80 + 45 = <<120+80+45=245>>245 figurines using all the blocks of wood. #### 245 Ronald wants to make profits by re-selling some phones he bought a week ago. He bought 200 units for just $3000, and he wants to gain a third of the initial investment in profits when all units are sold. Including the profit margin, what will be the selling price for each phone? The profit Ronald wants is $3000 / 3 = $<<3000/3=1000>>1000 The profit per phone sold will be $1000 / 200 phones = $<<1000/200=5>>5/phone The cost of each phone is $3000 / 200 phones = $<<3000/200=15>>15/phone The selling price including the profit will be $15/phone + $5/phone = $<<15+5=20>>20 #### 20