Anna has a certain number of phone chargers and five times more laptop chargers than phone chargers. If she has 24 chargers total, how many phone chargers does she have?

Let p be the number of phone chargers Anna has and l be the number of laptop chargers. We know that l = 5p and l + p = 24.

Substituting the first equation into the second equation, we get 5p + p = 24

Combining like terms, we get 6p = 24

Dividing both sides of the equation by 6, we get p = 4

#### 4

Coral reads 30 pages of a book on night 1, and 2 less than twice that on night 2. Night 3 Coral reads 3 more pages than the sum of the first two nights. How many total pages did Coral read in the 3 nights?

Night 1:30 pages

Night 2:2(30)-2=58 pages

Night 3:3+(30+58)=91 pages

Total:30+58+91=

<<30+58+91=179>>179 pages #### 179 A new condo development has 23 floors. Regular floors have 12 units, whereas penthouse floors have only 2 units. If the top 2 floors are assigned for penthouse units, how many units does this condo have in total? If the condo has 23 floors and the top 2 floors are reserved for penthouse then there are 23-2 = <<23-2=21>>21 floors for regular units If a regular floor has 12 units each, then 21 regular floors would have 12*21 = <<12*21=252>>252 units If a penthouse floor has 2 units each, then 2 penthouse floors would have 2*2 = <<2*2=4>>4 units The total units in the property would then be 252 regular + 4 penthouse or 252+4 = <<252+4=256>>256 units #### 256 In her bakery, Teal sells pumpkin pie and custard pie by the slice. The pumpkin pie is cut into 8 pieces. The custard pie is cut into 6 pieces. Pumpkin pie is $5 a slice. Custard pie is $6 a slice. If Teal sells 4 pumpkin pies and 5 custard pies, how much money does she make from her sales? Teal sells 8 x 4 = <<8*4=32>>32 pumpkin slices. She sells 6 x 5 = <<6*5=30>>30 custard slices. Pumpkin pie slice sales make 32 x $5 = $<<32*5=160>>160. Custard pie slice sales make 30 x $6 = $<<30*6=180>>180. Total amount of money she makes is $160 + $180 = $<<160+180=340>>340. #### 340 Carla had 400 chickens on her chicken farm. However, 40% of the chicken died due to a certain disease. How many chickens were there if she bought ten times as many chickens as the number that died due to disease? If Carla had 400 chickens on her chicken farm, the number that died is 40/100*400= <<40/100*400=160>>160 Carla remained with 400-160=<<400-160=240>>240 chickens. Carla then bought 10*160= <<10*160=1600>>1600 new chickens. The total number of chicken that Carla had now is 1600+240=<<1600+240=1840>>1840 #### 1840 A special balloon increases by two-fifths of its previous volume every hour when placed under water. If its original volume is 500cm³, what will its volume be after 2 hours underwater? In the first hour, the balloon will increase in volume by two-fifths of 500cm³ which is (2/5)*500cm³ = <<2/5*500=200>>200cm³ After the first hour, it will have a volume of (500+200)cm³ = <<(500+200)=700>>700cm³ In the second hour, it will increase in volume by two-fifths of 700cm³ which is (2/5)*700cm³ = <<2/5*700=280>>280cm³ After the second hour, it's volume will be (700+280)cm³ = <<(700+280)=980>>980cm³ #### 980 For Mother's Day last year, Kyle picked a dozen roses from his garden, but this year, he was only able to pick half the number of roses. If Kyle wants to give his mother a bouquet with twice as many roses as last year and the grocery store sells one rose for $3, how much would Kyle have to spend? This year, Kyle was only able to pick 12/2 = <<12/2=6>>6 roses. He wants to give his mother 12 x 2 = <<12*2=24>>24 roses. He still needs another 24 - 6 = <<24-6=18>>18 roses. He would have to spend 18 x 3 = $<<18*3=54>>54. #### 54 Dorothy, Julia, and Robert go to the store to buy school supplies. Dorothy buys half as many pens as Julia. Julia buys three times as many pens as Robert. Robert buys 4 pens. If one pen costs $1.50, how much money did the three friends spend in total on pens? Julia buys 4 * 3 = <<4*3=12>>12 pens Dorothy buys 12/2 = <<12/2=6>>6 pens The total number of pens purchased is 4 + 12 + 6 = <<4+12+6=22>>22 pens The total cost of the pens is 22 * $1.50 = $<<22*1.5=33>>33 #### 33 Ken, Dave, and Jerry played shuffleboard against one another while together vacationing in Florida. Ken won 5 more games than Dave, and Dave won 3 more games than Jerry. If Jerry won 7 games, what was the total number of games they played? If Dave won 3 more games than Jerry, and Jerry won 7 games, then Dave won 10 games. If Ken won 5 more games than Dave, and Dave won 10 games, then Ken won 10+5=<<10+5=15>>15 games. In total, the three friends played 7+10+15=<<7+10+15=32>>32 games. #### 32 Cory bought a patio table and 4 chairs for $135. The patio table cost $55. If each chair cost the same amount, how much did each chair cost? The 4 chairs cost Cory $135 - $55 = $80. Each chair costs $80 / 4 = $<<80/4=20>>20. #### 20