Friday

February 27, 2015

February 27, 2015

Posted by **lee** on Tuesday, September 28, 2010 at 9:49pm.

- algebra -
**Jen**, Tuesday, September 28, 2010 at 10:24pmr+s=10

2r+4s=27

Multiply the first equation by -2 to cancel the r's.

-2r-2s=-20

2r+4s=27

2s=7

s=3.5

Put s back into either original equation to solve for r (the first one would be easier).

**Answer this Question**

**Related Questions**

algebra - Mixture Problems Template – Price Problems Copy the problem from the ...

9th grade math - if a man mixes 12 lbs. of peanuts thats $1.25 a lbs. with a ...

Statistics - Suppose that heights of newborns are bell shaped with a mean of 6.8...

Statistics - Suppose that heights of newborns are bell shaped with a mean of 6.8...

Chemistry - There is a patient whose height is 5ft. 4 inches and weight is about...

Statistics - What price do farmers get for their watermelon crops? In the third...

Statistics - 1) No, 8.0 is the correct answer. 2) a strange and unlikely ...

Algebra - Can you please help me with this? Convert 36.7 lbs/in(3) to kilograms ...

algebra - I have beans that sell for $9 per pound and $12 per pound, they need ...

math - How many pounds of Acid Per inch? If you have a tank that’s 51ft 0 in. ...