SOLUTION: 1) A person with a mass of 80kg contains 50kg of water. How many kilograms of water are in a person with a mass of 64kg? 2) The stopping distance, d of a particular car after th

Algebra.Com
Question 1085591: 1) A person with a mass of 80kg contains 50kg of water. How many kilograms of water are in a person with a mass of 64kg?
2) The stopping distance, d of a particular car after the brakes are applied varies directly as the dquare of rate, r. If the car is traveling 25mph, if can stop in 50ft. How many feet will it take the same care to stop when it is traveling 50mph?
3) If there are 535 members of congress and 45 more republicians than democrats, how many of each party are there, assuming that there is no independents?

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
50 is to 80 as X is to 64.


.
.


So,


.
.
.

and

Substituting,


Solve for D then use either equation to solve for R.

RELATED QUESTIONS

The numbr of kilograms of water in a person's body varies directly as the person's mass. (answered by Alan3354)
A person with a mass of 90 kg contains 60 kg of water. How many kilograms of water are in (answered by Boreal)
The number of kilograms of water in a persons body varies directly as the persons mass. A (answered by Alan3354)
1)Becky would like to have at least $100,000 saved for her daughter's college education. (answered by addingup)
The number of kilograms of water in a human body varies directly to the mass of the body. (answered by Cromlix)
The number of kilograms of water in a human body varies directly as the mass of the... (answered by greenestamps,josgarithmetic)
The number of kilograms of water in a person's body varies directly as the persons mass.... (answered by Boreal,josmiceli)
A typical adult body contains 55% water. If a person has a mass of 62.0 kg , how many... (answered by checkley77)
A typical adult body contains 55% water. If a person has a mass of 65 kg, how many pounds (answered by jim_thompson5910)