|
Question 317162: Old MacDonald has 100 chickens and goats in the barnyard. Altogether, there are 286 feet. How many chickens and goats are in the barnyard?
write an expression using variables to show how you got your answer
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Old MacDonald has 100 chickens and goats in the barnyard. Altogether, there are 286 feet. How many chickens and goats are in the barnyard?
write an expression using variables to show how you got your answer
--------------------------------
Equations:
Quantity: c + g = 100
Feet:::::2c +4g = 286
---------------------------------
Modify:
c + g = 100
c + 2g = 143
-------------------
Subtract 1st from 2nd to get:
g = 43 (# of chickens)
---
Since c + g = 100, g = 57 (# of goats)
=========================================
Cheers,
Stan H.
|
|
|
| |
