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Answers by Amarjeet K.

Let width be x so length = 2x -65   perimeter = 2x + 2(2x-65) = 830 solve for x   2x + 4x - 130 = 830 6x = 960 x = 960/6 = 160   so width = 160 and length = 2x160 -65 = 255 :)

Let amount Kevin kept for himself = x   x + x/2  + x/4 = 735000   solve for x   7x/4 = 735000 x=420000   Kevin got = $420,000 Daughter got = 420000/2 = $210,000 Father got = 420000/4 = $105,000

Top soil required = 50 x 40 x 0.5 = 1000 cubic feet = 1000/27 cubic yard   Option 1 Bags required = 1000/3 = 333.33 ~ 334 bags cost = 334 x 2.25 = $751.50   Option 2   Cost = (18 x 1000/27) +50 = $716.67   Option 1 is less expensive...

Let amount invested in 6% account = X So amount invested in 9% account = X + 2000   Interest earned by 6% account = X x 6/100 x 1 = 6x /100 Interest earned by 9% account = (X+2000) x 9/100 x 1 = 9x/100 + 180   as per question   6x/100...

πr2h = 1.84 ft3 /min  - as long as flow rate is constant and independent of height of water in the pool.   3.14 x 152ft2 x h = 1.84  ft3 /min calculate h :)

distance between two points whose coordinates are x1y1 and x2y2  ü√(y2-y1)2 + (x2-x1)2   In this case a and b are on x axis and their y coordinates are 0. Plug in values x2 = b and x1=a   Distance = b-a   also we know absolute value of b-a is...

Math help!!! (answer)

Assume Bert started with x money   spent on notebook = 4.75   Remaining money = x-4.75   spent on text book = 1/2 (x - 4.75)   remaining money = (x - 4.75) - 1/2(x - 4.75) = 1/2(x - 4.75)   spend on sheet music = 4   remaining...

Math help!!!! (answer)

Second plan will fetch him = .25 + .5 + 1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 = 255.75   second plan would be most profitable.   :)

Assume 100 beans in the soup   Lentils = 36/100  x 100 = 36   Green = 33.33/100   x 36 = 12   If green lentils are removed left beans = 100 - 12 = 88   Left beans = 88/100  x 100 = 88% of original beans   x = 8...