Wednesday

April 23, 2014

April 23, 2014

Posted by **AJ** on Thursday, May 12, 2011 at 9:36am.

- Math -
**PsyDAG**, Thursday, May 12, 2011 at 11:33am5x = 2y therefore

x = 2/5y

x + y = 155

Substitute 2/5y for x in last equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the last equation.

**Related Questions**

maths - A bag contained a number of 20cents, 50cents and $1 coins. 1/3 of the ...

Math - Susan has some $2-coins and $5-coins. If there are 18 coins and the total...

math - jeremy has 19 coins of 2 different values. the total value of coins is 1...

Math 4th Grade - 200 coins are sorted and kept 3 bags. The first bag has 20 more...

Math - 200 coins are sorted and kept 3 bags. The first bag has 20 more coins ...

5th grade math - I need to use quarters, dimes, nickles and pennies to make the ...

Math - Shirley has 18 coins. One sixth of the coins are quarters, one third of ...

math - lavere has sixty-one coins, all of which are dimes and quaters. if the ...

grade 9 math!!!!!!!!!! please help - lavre has sixty-one coins, all of whichare ...

aig math - Janet has 73 coins. Linda has 28 more coins then Janet, but 17 fewer ...