Posted by sarah on Saturday, July 27, 2013 at 6:26am.
if a number x is 10%of y and z,and z is 3 times of y.What % is x of y alone? 1)3.3% 2)2.5% 3)5% 4)4%

math  PsyDAG, Saturday, July 27, 2013 at 12:38pm
z = 3y
x = .1(y+z) = .1(y+3y) = .1(4y)
Take it from there.

math  sarah, Sunday, July 28, 2013 at 1:54am
i don't understand what is x of y alone ,

math  PsyDAG, Sunday, July 28, 2013 at 12:47pm
It is the relationship of x to y with z factored out.
Answer This Question
Related Questions
 Math  You roll a number cube and get a one 7 times, a two 8 times, a three 5 ...
 math  the number of my hunderds plus the number of my thousandsin 3. the number...
 Math  a standard number cube is rolled 180 times. Predict how many times a 3 or...
 MS. SUE  MATH HELP PLEASE  The sum of five times a number and twice a second ...
 math  Jennifer is playing a game that involved rolling a fair number cube. She ...
 math  negative one times the sum of twice a number and 3 is equal to two times ...
 math  write the verbal sentence as an equation.then solve the equation Three ...
 math  one number is 6 more than the other number also 7 times the smaller ...
 Math  Zabato is thinking of a number. Three times the sum of the number and ten...
 Math 8R: Homework Check  Part 4  Part 4: Translate and solve: 25. 6 less than ...
More Related Questions