Steve has a bank account that earns 10% interest every year. He puts $100 in it, and then 10 each year. How much money is in it after two years?

How much does it earn in one year? ** After one year it earns $10 in interest because 100 x .1 =

<<100*.1=10>>10 How much does it have after a year? ** It has $120 in it after a year because 100 + 10 + 10 = <<100+10+10=120>>120 How much does it earn in the second year? ** In the second year it earns $12 in interest because 120 x .1 = <<120*.1=12>>12 How much does it have after two years? ** In the second year it has $142 in it because 120 + 12 + 10 = <<120+12+10=142>>142 #### 142 Three plastic chairs cost as much as a portable table. Five plastic chairs cost $55. If Manny wants to buy one portable table and two chairs, how much will be left in his $100? How much does each chair cost? ** Each plastic chair costs $55/5 = $<<55/5=11>>11. How much do the two chairs cost? ** Two chairs cost $11 x 2 = $<<11*2=22>>22. How much does a portable table cost? ** A portable table costs $11 x 3 = $<<11*3=33>>33. How much does Manny have to pay? ** Manny has to pay a total of $22 + $33 = $<<22+33=55>>55. How much will be left in his $100? ** Thus, Manny will be left with $100 - $55 = $<<100-55=45>>45. #### 45 Last night, Olive charged her phone for 10 hours. Assuming each hour of charge lasts the phone 2 hours of use, calculate the total time Olive would be able to use her phone before it goes off if she charges it for 3/5 of the time she charged the phone last night. How many hours would the phone be charged for? ** If Olive charges her phone for 3/5 of the time she charged the phone last night, the phone would be charged for 3/5*10=<<3/5*10=6>>6 hours. How many hours would the phone be able|endoftext|>|endoftext|>|endoftext|>|endoftext|>|endoftext|>|endoftext|>|endoftext|> ** Assuming each hour of charge lasts the phone 2 hours of use, the phone will last for 6*2=<<6*2=12>>12 hours before it goes off when Olive uses it on a six hours charge. #### 12 Wilma has a garden with 3 types of flowers. The garden has 6 rows, with 13 flowers in each row. Wilma has 12 yellow flowers, two times more green flowers, and the rest consist of red flowers. How many red flowers does Wilma have? How many flowers are in the garden? ** The garden has space for 6 * 13 = <<6*13=78>>78 flowers in total. How many green flowers does Wilma have? ** Wilma has two times more green flowers than yellow flowers, which means she has 2 * 12 = <<2*12=24>>24 green flowers. How many red flowers does Wilma have? ** That leaves us with 78 - 24 - 12 = <<78-24-12=42>>42 red flowers in the garden. #### 42 Jamie owns 4 Persian cats and 2 Maine Coons. Gordon owns half as many Persians and one more Maine Coon than Jamie. Hawkeye owns one less Maine Coon than Gordon and no Persian cats. If they bring all of their cats together to play, how many cats are there in total? How many Persians does Gordon have? ** Gordon has 4 / 2 = <<4/2=2>>2 Persians. How many Maine Coons does Gordon have? ** Gordon has 2 + 1 = <<2+1=3>>3 Maine Coons. How many Maine Coons does Hawkeye have? ** Hawkeye has 3 - 1 = <<3-1=2>>2 Maine Coons. How many cats are there in total? ** In total, they have 4 + 2 + 2 + 3 + 2 + 0 = <<4+2+2+3+2+0=13>>13 cats. #### 13 Connie redeemed all her arcade tickets today. She spent half of them on a stuffed koala bear. She spent 10 tickets on a pair of earbuds. She spent another 15 tickets on glow bracelets. How many tickets did Connie redeem today? How many tickets did Connie spend? ** Connie spent 10 tickets on earbuds + 15 tickets on glow bracelets = <<10+15=25>>25 tickets. How many tickets did Connie spend on the stuffed koala bear? ** Since Connie spends half of her tickets on a stuffed koala bear, that means the 25 tickets she spent on earbuds and glow bracelets is the other half, so she spent 25 tickets on the stuffed koala bear. How many tickets did Connie spend? ** In all, Connie spent 25 tickets on earbuds and glow bracelets + 25 tickets on a stuffed koala bear = <<25+25=50>>50 tickets. #### 50 James can buy a new computer for $600 and have it last 6 years, or buy 2 used computers for $200 each that each last 3 years. How much money will he save by picking the cheaper option? How much do the two used computers cost? ** First find the cost of the two used computers: $200/computer * 2 computers = $<<200*2=400>>400 How much money will James save by picking the cheaper option? ** Then subtract that cost from the cost of the new computer to find the savings: $600 - $400 = $<<600-400=200>>200 #### 200 Debra is the host of a country music radio show, and she broadcasts interviews with celebrity country music singers. Each week, she interviews three singers, one at a time. The first interview segment is always twice as long as the other two segments combined, and the third interview segment is always half as long as the second. If the third segment is 10 minutes long, how many minutes long is the entire show? How long is the second segment? ** If the third segment is half as long as the second, then the second segment is twice as long as the third, or 10*2=<<10*2=20>>20 minutes long. How long is the first segment? ** The first segment is twice as long as the other two combined, or 2*(10+20)=<<2*(10+20)=60>>60 minutes. How long is the entire show? ** Thus, in total, the show is 10+20+60=<<10+20+60=90>>90 minutes long. #### 90 Olly wants to get shoes to protect his pets’ paws. He owns 3 dogs, 2 cats, and a ferret. How many shoes does he need? How many legs do all the animals have? ** All the animals have 4 legs. How many shoes do his 3 dogs need? ** His 3 dogs will need 3 * 4 = <<3*4=12>>12 shoes. How many shoes do his 2 cats need? ** His 2 cats will need 2 * 4 = <<2*4=8>>8 shoes. How many shoes does his ferret need? ** His ferret will need 1 * 4 = <<1*4=4>>4 shoes. How many shoes does Olly need? ** Olly will need 12 + 8 + 4 = <<12+8+4=24>>24 shoes. #### 24 Emma traveled by car 280 miles in 2 hours 20 minutes. What was the average speed of the car in miles per hour? How many minutes are in 4 hours 20 minutes? ** We first convert the time of 4 hours 20 minutes in minutes 2 hours 20 minutes = 2 × 60 + 20 = 140 minutes How many miles per minute is the average speed? ** Average speed S is given by distance / time. Hence S = 280 miles / 140 minutes = <<280/140=2>>2 mile / minute How many miles per hour is the average speed? ** There are 60 minutes in an hour so the speed is 2*60=120 miles/hour #### 120