Saturday

April 19, 2014

April 19, 2014

Posted by **koori** on Tuesday, January 27, 2009 at 9:54pm.

Three times the larger of two numbers is equal to four times the smaller. The sum of the numbers is 21. Find the numbers.

- math word problem -
**haz**, Tuesday, January 27, 2009 at 9:56pm3xy = 4y

x+y = 21

let x equal the larger number

let y equal the smaller number

ok..

take it step by step. u first divide 4y on both sides. if that doesn't work, just plug numbers in. hope this helps! please answer my question! thanks.

XOXO

Hazel

- math word problem -
**PsyDAG**, Wednesday, January 28, 2009 at 12:53pmThree times the larger of two numbers is equal to four times the smaller. Let x equal the larger number, and

let y equal the smaller number.

3x = 4y or dividing both sides by 4, y = 3/4x

The sum of the numbers is 21.

x + y = 21

Substitute 3/4x for y in the second equation. and solve for x. Put that value into the first equation to find y. Check by putting both values into the second equation.

I hope this helps a little more. Thanks for asking.

**Related Questions**

social science - Can someone give me like a short five sentence paragraph on ...

algebra - im having a hard time solving a problem that is 9x+9y=-18 do you think...

algebra - I am having a hard time solving my problem 220 + 5 80 - 7 5 Can...

algebra - I am having a hard time solving my problem 220 + 5 80 - 7 5 Can...

calculus/finite - I am taking an online finite math class, so I dont have an ...

Algebra 1 - I'm having trouble solving x=2(x-1)+6 I understand but I get ...

College Math II - Solve by any method. a^4 5a^2 + 4 = 0 I am having problems ...

Basic Algebra - I am having a hard time trying to figure out this problem, if ...

Calculus AP - Volume of Revolution - Hi. I have a few calculus problems that I ...

Algebra 1 - write an equation of the line containing the point and perpendicular...