Friday

April 25, 2014

April 25, 2014

Posted by **Layla** on Thursday, December 9, 2010 at 9:32pm.

- Math -
**PsyDAG**, Friday, December 10, 2010 at 10:19amLet x = boys and y = dogs

x + y = 40, then x = 40-y

2x + 4y = 100

Substitute 40-y for x in second equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the second equation.

- Math -
**Poop**, Tuesday, May 29, 2012 at 11:55pm10 dogs

30 kids

- Math -
**rffgfthtdcty**, Tuesday, November 20, 2012 at 10:33am2-4=2-=+y=y765

**Related Questions**

Algebra - An algebra teacher drove past a farmyard that was full of chickens ...

Math - A teacher is trying to pick 7 students to represent his class at an ...

ratio - at a playground, the ratio of boys to girls was 5:6. if 2 over 5 of the ...

Math - Mrs.Smith's class has 12 girls and 8 boys. What percent of he class are ...

maths - there are 100 boys, 80 girls, and 20 teachers. In how many ways can a ...

Math - A class consists of 16 boys,12girls, and 2 teachers. How many different ...

mathss - Can someone explain how to do this: There are 100 boys , 80 girls, and ...

Math - Ms. Poole, my PE teacher, asked the 100 seventh in my school if they ...

math - In a group no. of boys is48/5, no of girls is 32/5 and no. of techer is 2...

math - 8) A high school graduating class is made up of 445 students. There are ...