Posted by Denis Borris on October 13, 2002 at 21:08:43:
In Reply to: homework help posted by desire on October 13, 2002 at 20:08:38:
: 1) The volume of a cone is V= 1/3 Pie r squared. Rewrite th formula for H in tems of V nd R?? please show the steps please..
: 2) If A is directly proportional to the cube of b, write the equation.
: 11) Mrs Johnon is 3 times as old as her son. Ten years ago she was 5 times as old as her son was then. Find Mrs Johnon's present age?
: 12) John in 5 years older then Mary. Ten years from now,the sum of their ages will be 39. How old is John now?
: 13) Jaime has a 15% discount coupon for Foleys Red apple Sale. If se buys a shirt for $25 and jeans for $35 (regular price), write an equation that show the
: A) discount she would get
: b) amount she would pay with the discount coupon
: 14) a) If y varies directly as x and y=-16 when x=2 find y when x=-12
: b) If y varies directly as x and y=-12 when x=-18, find x when y=24
: 16) write variation equaion for the following:
: a) intesity I of lightvarie inversely as the square of the observers distance d from the light source
: b) price of pizza p varies diectly with the square of its diameter
: 20) one number is twice another #. If u take one-fourth of the lesser # and subtract it from the greater # u get 21 find the leser # and the greater #??
: 21) Rent--Truck's rates are $50 per day plus $0.50 per mile and Sam's U-Drive's are $70 a day plus $).45 per mile.
: a) Find the mileage at which the cost for the two will be the same?
: b) what is the cost?
: c) when should u rent from rent a truck rather than Sams u-drive?
: D) When should u rent rom Sams U-drive rather than Rent a truck?
: PLEASE EXPLAIN AND SHW ME HOW U GOT THE ANSWERS PLEASE!!!!
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