Imagination is more important than knowledge... Albert Einstein

                                                                                   Guess is more important than calculation --- Knowhowacademy.com

Problem Num : 11 Type: Topic:Rate  Theme:None Adjustment# : 24 Difficulty: 1
Category	Speed, Time, and Distance
Analysis
Solution/Hint

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Problem Num : 12 Type: Topic:Rate  Theme:None Adjustment# : 28 Difficulty: 2
Category	Speed, Time, and Distance
Analysis	Express the situation mathematically. (4*v_x +3*v_y)/v_x ? (2)4*V_x=2*(3*V_y)
Solution/Hint

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Problem Num : 13 Type: Mathematical Writing Topic:Rate  Theme:Use a number Adjustment# : 29 Difficulty: 800
Category	Speed, Time, and Distance
Analysis	Express all condition mathematically.. And decide what you need. W/(V_m+V_p+V_k) =24 ,W/(V_m+V_p) =36, W/(V_p+V_k) =48
Solution/Hint

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Problem Num : 14 Type: Topic:Rate  Theme:None Adjustment# : 30 Difficulty: 1
Category	Speed, Time, and Distance
Analysis
Solution/Hint

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Problem Num : 15 Type: Topic:Rate  Theme:None Adjustment# : 31 Difficulty: 1
Category	Speed, Time, and Distance
Analysis
Solution/Hint

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Problem Num : 16 Type: Topic:Rate  Theme:None Adjustment# : 32 Difficulty: 1
Category	Speed, Time, and Distance
Analysis
Solution/Hint

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Problem Num : 17 Type: Topic:Rate  Theme:None Adjustment# : 35 Difficulty: 1
Category	Speed, Time, and Distance
Analysis
Solution/Hint

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Problem Num : 18 Type: Topic:Rate  Theme:None Adjustment# : 38 Difficulty: 1
Category	Speed, Time, and Distance
Analysis	t_x=? (1)t_x=t_y - 1 (2)v_y = 30*60
Solution/Hint

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Problem Num : 19 Type: Topic:Rate  Theme:None Adjustment# : 39 Difficulty: 3
Category	Speed, Time, and Distance
Analysis	(1)During that time (t) if you think about the total distance they move, 1+50t=40t+2 (2)It takes 3min to make 1/2 mile distance 1/2 = 3v_x -3v_y= 3(v_x -v_y). It takes t min to make 1 mile distance 1= t(v_x -v_y). so that we can find t value
Solution/Hint

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Problem Num : 20 Type: Topic:Rate  Theme:None Adjustment# : 39 Difficulty: 1
Category	Speed, Time, and Distance
Analysis	The distance is not given so that you can use any number for the distance. In this case, use 100 for the distance because we need to divide the entire trip by %.
Solution/Hint	v=100 /( x/40 + (100-x)/60)-- ME Let's calculate.

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