SOLUTION: dont know if im in the right place direct me if im not but.. wut is
At a pet store, Rhonda paid $11.50 for 3 dog bowls and 4 bones. Kelly paid $13 for 2 dog bowls and 8 bones. How
Algebra.Com
Question 256936: dont know if im in the right place direct me if im not but.. wut is
At a pet store, Rhonda paid $11.50 for 3 dog bowls and 4 bones. Kelly paid $13 for 2 dog bowls and 8 bones. How much will Andrew pay for 4 dog bowls and 2 dog bowls
this is wut i got so far
$11.50 = 3 dog bowls + 4 bones
$13 = 2 dog bowls + 8 bones
? = 4 dog bones + 2 bones
walk thrue if you can plz
thank you ahead of time
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
$11.50 = 3 dog bowls + 4 bones
$13 = 2 dog bowls + 8 bones
11.50=3d+4b multiply this equation by -2 & add.
13=2d+8b
-23=-6d-8b
--------------
-10=-4d
-4d=-10
d=-10/-4
d=$2.50 the price of one dog bowl.
11.50=3*2.50+4b
11.50=7.50+4b
4b=11.50-7.50
4b=4
b=$1 the price of one bone.
4d+2b=4*2.50+2*1=10+2=$12 for 4 dog bowls plus 2 bones.
RELATED QUESTIONS
i know this might not be the right collum but i cant find where to put direct variations... (answered by Earlsdon)
well i dont not understand any questions that look like this :
"... (answered by stanbon)
if a=9 and b=4 c=?
Im 13 and need help so please send me information for my mother... (answered by Ave)
the length of a rectangle is three cm longer than twice the width and that the perimeter... (answered by richwmiller)
I have an algebra II quiz on complex numbers and im not sure if i understand any of... (answered by ankor@dixie-net.com)
Im having a hard time with ratio proportions the question is if an airplane flies 1260... (answered by lenny460)
jus need help with finding solution. you may not see the parenthesis around both of the... (answered by josmiceli)
A car was valued at $31,000 in the year 1991. The value depreciated to $14,000 by the... (answered by Boreal)
the diagonal of a rectangle has length of 50. If its legs are in the ratio 3:4, what is... (answered by josgarithmetic)