A chair costs 1/7 of the cost of a table. If a table costs $140, how much will it cost to buy a table and 4 chairs?

How much does one chair cost? ** One chair costs $140 x 1/7 = $

<<140*1/7=20>>20. How much do four chairs cost? ** Four chairs cost $20 x 4 = $<<20*4=80>>80. How much will it cost to buy a table and 4 chairs? ** So a table and 4 chairs cost $140 + $80 = $<<140+80=220>>220. #### 220 Alani earned $45 for 3 hours of baby-sitting. At the same rate, for how many hours would she need to baby-sit to earn $75? How many dollars does Alani earn per hour? ** The rate is $45/3=$<<45/3=15>>15/hr. For how many hours would she need to baby-sit to earn $75? ** She would need to baby-sit for $75/$15=<<75/15=5>>5 hours. #### 5 A teacher teaches 5 periods a day and works 24 days a month. He is paid $5 per period. if he has been working for 6 months now how much has he earned in total? How much is paid to the teacher per day? ** The amount paid to the teacher per day is 5 periods * $5 / period = $<<5*5=25>>25 per day. How much is paid for 24 days? ** The amount paid for 24 days is $25 / day * 24 days = $<<25*24=600>>600. How much has the teacher earned in total? ** The total amount for 6 months is $600 * 6 = $<<600*6=3600>>3600. #### 3600 On her birthday, Avianna bought red candles and blue candles in the ratio of 5:3. If Avianna had 45 red candles on her birthday, how many blue candles did she have? How many candles did Avianna buy? ** If the ratio of red candles to blue candles Avianna bought was 5:3, then the total ratio was 5+3 = 8. How many blue candles did Aviana have? ** If 5 represented 45 candles in the total ratio, then 8, the actual ratio, represents 8*45 = 360 divided by 5 is 360/5 = 72 candles. How many blue candles did Aviania have? ** If the total number of candles was 72, then the number of blue candles is 72 candles - 45 candles = <<72-45=27>>27 candles #### 27 Mary and Rose went shopping to buy presents. They spent the same amount. Mary bought two pairs of sunglasses for $50 each and a pair of jeans for $100. Rose bought a pair of shoes at $150 and two decks of basketball cards. How much did one deck of basketball cards cost? How much did Mary spend on sunglasses? ** Two pairs of sunglasses costs 2 x $50 = $<<2*50=100>>100. How much did Mary spend? ** So, Mary spent $100 + $100 = $<<100+100=200>>200. How much did one deck of basketball cards cost? ** Thus, two decks of basketball cards costs $200 - $150 = $<<200-150=50>>50. How much did one deck of basketball cards cost? ** Therefore, one deck of basketball cards costs $50/2 = $<<50/2=25>>25. #### 25 Yeon has three times as many watermelon seeds as Gwi. Gwi has 40 more watermelon seeds than Bom. If Bom has 300 watermelon seeds, how many seeds do they have together? How many seeds does Gwi have? ** If Bom has 300 seeds, then Gwi has 300+40 = <<300+40=340>>340 watermelon seeds. How many seeds do Bom and Gwi have together? ** Together, Bom and Gwi have 340+300 = <<340+300=640>>640 melon seeds. How many seeds does Yeon have? ** Yeon's number of watermelon seeds is three times as many as the number that Gwi has, meaning Yeon has 3*340 = <<3*340=1020>>1020 watermelon seeds. How many seeds do Bom, Gwi, and Yeon have together? ** Together, the three friends have 1020+640 = <<1020+640=1660>>1660 watermelon seeds. #### 1660 Jasmine and her older sister Alexa went to the store to buy shoes. Alexa's shoes are twice as big as Jasmine's shoes. If Jasmine's shoe size is 7, what's the combined shoe size for both of them? How big are Alexa's shoes? ** If Alexa's shoes are twice those of Jasmine, then her shoe size is 7 * 2 = <<7*2=14>>14 How big are both of their shoes? ** The total shoe size is 14 + 7= <<14+7=21>>21 #### 21 Vaishali has 4 hats, each with three stripes. She also has three hats with four stripes each, six hats with no stripes, and another two hats with 5 stripes each. What is the combined total number of stripes Vaishali has on all of her hats? How many stripes are on each of Vaishali's hats? ** Four hats, each with three stripes, is 4*3=<<4*3=12>>12 stripes. How many stripes are on each of Vaishali's hats? ** Three hats with four stripes each is 3*4=<<3*4=12>>12 stripes. How many stripes are on each of Vaishali's hats? ** Six hats with no stripes is 6*0 = <<6*0=0>>0 stripes. How many stripes are on each of Vaishali's hats? ** And two hats with 5 stripes each is 2*5=<<2*5=10>>10 stripes. What is the combined total number of stripes Vaishali has on all of her hats? ** The combined total number of stripes Vaishali has on all of her hats is 12+12+0+10=<<12+12+0+10=34>>34 stripes. #### 34 A baker has 10 cheesecakes on the display while 15 more are still in the fridge. If the baker has sold 7 cheesecakes from the display, how many more cheesecakes are left to be sold? How many cheesecakes does a baker have? ** A baker has a total of 10 + 15 = <<10+15=25>>25 cheesecakes both from the display and the fridge. How many more cheesecakes are left to be sold? ** Therefore, there are 25 - 7 = <<25-7=18>>18 more cheesecakes to be sold. #### 18 Tina is working on her homework when she realizes she's having a hard time typing out her answers on her laptop because a lot of the keys are sticky. She is trying to get her homework done before dinner, though, so she needs to decide if she has time to clean her keyboard first. Tina knows her assignment will only take 10 minutes to complete. Dinner will be ready at 5:30 p.m. Tina decides to time how long it takes to remove and clean one key and will then multiply that time by how many keys she needs to fix. She counts 15 keys that are sticky and times it to take 3 minutes to clean one. After Tina has cleaned one key, there are 14 left to clean. How many minutes total will it take for Tina to both clean the remaining keys and finish her assignment? How many minutes will it take to clean all the keyboard keys? ** Tina has already cleaned one key so she has 14 left which take 3 minutes each to clean, 14 x 3 = <<14*3=42>>42 minutes to clean all the keyboard keys. How many minutes total will it take for Tina to both clean the remaining keys and finish her assignment? ** Her assignment will take 10 minutes to complete, so she needs 42 minutes + 10 minutes = 52 minutes total before dinner. #### 52