Answer Key HW Set 28 Section 6.5

HW Set 28 Section 6.5 P159 115 a) Sam has $135. He gives #5 to each friend. How many friends got money? b) Sam has $135. He gives the money equally to 5 friends. How much money did each friend get? c) A cookie recipe calls for 3/4 cups of flour. If you have 32 cups of flour, how many batches. of cookies can you make? (can) note: if you work this out, you bake 8 entire batches and have 2 cups of flour left d) After spending 1/3 of his money of shoes, Joe had $72 left. How much money did he have to start? e) You have 1/2 cup of sugar. A cookie recipe calls for 1/3 cup of sugar. How many batches of cookies can you make? depends on how you interpret this (de either 1 entire batch with 1/3 cup of sugar left or 1 1/2 batches f) 7 children equally share 5/6 gallon of juice. How much does each child get? 5 a) 6 units = $42 1 unit = $7 5 units = $35 The backpack costs $35. b) 14 units = 56 1 unit = 4 5 units = 20 Her sister got 20 candles Note: This one is easy to do mentally. Jenny sold 1/2 (56) or 16 candles She has 56-16 = 40 candles left 40÷2= 20 So she and her sister each get 20 candles Column 1 600 - (1/5 * 600) - (1/4 * 600) 600 - 120 - 150 330 There were 330 loaves of bread. 20 units = 600 1 unit = 30 [11 units = 330] Monday ? Tuesday There were 330 loaves left. d) 240 8 units = 240 He had $15 left. 1 unit = 30 bike 3 [unit = 90] skates ? 6 small units = 90 1 small unit = 15 e) 7 units = 28 1 unit = 4 2 units = 32 There were 32 puppies to start. week 1 Week 2 28 f) 3 units = 18 cupcakes 16 cupcakes & 18 cupcakes [1 unit = 6] cupcakes 30 cookies you find this out while working out the problem she used UNSHADED part of flour for cookies are Column 2 b) Let c be the number of chickens 2/7 c is the number of roosters 5/7 c is the number of hens 5/7 c = 3/7 c + 21 -> 2/7 c = 21 So c = 21 * 7/3 = 49 There were 49 chickens. 7 a) Let x be the number 512 = 8/9 * x So x = 512 * 9/8 X = 64 * 9 X = 576 The number is 576 c) Let m = amt of money Harold had m/3 is the cost of a T-shirt 2/3 m is the amt of money left after T-shirt 3/5 (2/3 m) = 2/5 m is the cost of the shorts m - 1/3 m - 2/5 m = 12 4/15 m = 12 m = 12 * 15/4 = 3 * 15 = 45