On Thursday Walmart sold 210 pounds of ground beef. On Friday they sold twice that amount. On Saturday they only sold 150 pounds. What was the average amount of beef sold per day?

How many pounds of beef did Walmart sell on Friday? ** On Friday Walmart sold 2 * 210 pounds =

<<2*210=420>>420 pounds. How many pounds of beef did Walmart sell in total? ** For all three days Walmart sold 210 + 420 + 150 pounds = <<210+420+150=780>>780 pounds. What was the average amount of beef sold per day? ** The average amount of beef sold per day is 780 pounds / 3 days = <<780/3=260>>260 pounds. #### 260 Wilson decides to go sledding on some nearby hills. On the 2 tall hills, he sleds down them 4 times each and on the 3 small hills, he sled down them half as often as he sleds down the tall hills. How many times did he sled down the hills? How many times does he sled down the tall hills? ** On the tall hills, he sleds down 2 tall hills * 4 times per tall hill = <<2*4=8>>8 times. How many times does he sled down the small hills? ** He sleds down the small hills half as often so he sleds down each hill 4 times per tall hill / 2 = <<4/2=2>>2 times per small hill. How many times does he sled down the small hills? ** On the small hills, he sleds down 3 small hills * 2 times per small hill = <<3*2=6>>6 times. How many times did he sled down the hills? ** So in total, Wilson sled down the hills 8 times on tall hills + 6 times on small hills = <<8+6=14>>14 times. #### 14 Bea and Dawn both have a lemonade stand. Bea sells her lemonade at 25 cents while Dawn sells hers at 28 cents. If Bea sold 10 glasses and Dawn sold 8 glasses, how much more money (in cents) did Bea earn than Dawn? How much money did Bea make? ** Bea's sales amount to $0.25/glass x 10 glasses = 250 cents. How much money did Dawn make? ** Dawn's sales amount to $0.28/glass x 8 glasses = 224 cents. How much more money did Bea earn than Dawn? ** So, Bea earned $2.50 - $2.24 = 26 cents more than Dawn. #### 26 Whitney bought 9 books about whales and 7 books about fish. She also bought 3 magazines. Each book cost $11 and each magazine cost $1. How much did Whitney spend in all? How many books did Whitney buy? ** The total number of books is 9 books + 7 books = <<9+7=16>>16 books. How much did the books cost? ** The cost of the books is $11/book × 16 books = $<<11*16=176>>176. How much did the magazines cost? ** The cost of the magazines is $1/magazine × 3 magazines = $<<1*3=3>>3. How much did Whitney spend in all? ** Whitney spent $3 + $176 = $<<3+176=179>>179 in all. #### 179 Justin and Sabrina at Pine Grove Elementary have 50 pencils combined. Justin has 8 more than twice as many pencils as Sabrina. How many pencils does Sabrina have? Define a variable ** Let's say Sabrina has p number of pencils. How many pencils does Justin have? ** If Justin has 8 more than twice as many pencils as Sabrina, he has 2*p + 8 = 2p+8 How many pencils do Justin and Sabrina have together? ** Together, Justin and Sabrina has p +(2p+8)=50 Simplify ** This is equal to 3p=50-8 Simplify ** 3p=42 How many pencils does Sabrina have? ** The number of pencils that Sabrina has is p=42/3 How many pencils does Sabrina have? ** Sabrina has p=<<14=14>>14 pencils #### 14 Annie brought 20 brownies to school. She gave half of them to the school administrator to put in the faculty lounge. Of the remaining brownies, she gave half to her best friend, Carl, and another two to her friend, Simon. How many brownies did she have left? How many brownies did she give away? ** She first gave away half of her 20 brownies, or 20/2=<<20/2=10>>10 brownies, to the faculty. How many brownies did she have left? ** The remaining brownies number 20-10=<<20-10=10>>10 brownies. How many brownies did she give to Carl? ** She gave half of these remaining brownies, or 10/2=<<10/2=5>>5 brownies, to Carl. How many brownies did she have left? ** This reduced her number from 10 down to 10-5=<<10-5=5>>5 brownies. How many brownies did she have left? ** Finally, she gave away another 2, leaving her with 5-2=<<5-2=3>>3 brownies. #### 3 Josh has 100 feet of rope. He cuts the rope in half, and then takes one of the halves and cuts it in half again. He grabs one of the remaining pieces and cuts it into fifths. He's stuck holding one length of the rope he's most recently cut. How long is it? How many feet of rope does John have? ** John starts with 100ft of rope that he cuts in half, meaning he has 100/2= <<100/2=50>>50-foot sections of rope. How many feet of rope does John have after cutting the first section in half? ** He then takes one of these sections and cuts it in half again, leaving him with two 50/2= <<50/2=25>>25-foot sections of rope. How many feet of rope does John have after cutting the second section into fifths? ** He then takes one of these sections and cuts it into fifths, leaving him with 25/5= <<25/5=5>>5 foot sections of rope, one of which he is now holding. #### 5 Tameka is selling boxes of crackers for her scout troop. On Friday, she sold 40 boxes. On Saturday, she sold 10 fewer than twice that number. And on Sunday, she sold half as many as Sunday. How many boxes did she sell over the three days? How many boxes of crackers did Tameka sell on Saturday? ** Saturday's total was 2*40-10=<<2*40-10=70>>70. How many boxes of crackers did Tameka sell on Sunday? ** Sunday's was 70/2=<<70/2=35>>35. How many boxes did she sell over the three days? ** The sum is 40+70+35=<<40+70+35=145>>145. #### 145 In 5 years, Frank will be three times as old as Ty is now. Ty is currently 4 years more than two times as old as Carla is now. Carla is currently 2 years older than Karen is now. If Karen is currently 2 years old, how old will Frank be in 5 years? How old is Carla now? ** Carla is currently 2 + 2 = <<2+2=4>>4 years old How old is Ty now? ** Ty is currently (2 * 4) + 4 = <<2*4+4=12>>12 years old How old will Frank be in 5 years? ** In 5 years, Frank will be 12 * 3 = <<12*3=36>>36 years old #### 36 A Printing shop needs to ship 5000 brochures to an advertising company. Each box can only contain one-fifth of the brochures. How many boxes are needed to ship those brochures? How many brochures can fit in one box? ** 5000 x 1/5 = <<5000*1/5=1000>>1000 brochures can fit in one box. How many boxes are needed? ** Thus, 5000/1000 = <<5000/1000=5>>5 boxes are needed #### 5