Homework Help: algebra

Posted by Linda on Monday, December 12, 2011 at 7:12pm.

A flying saucer filled with space aliens landed in my front yard!After the entire crew had filled out of their spaceship, I happened to count their heads and feet. I saw a total of 91 heads and 124 feet. It was clear that their leader was a purple creature with three heads and four feet. The rest of the space aliens each had two heads. The green ones had two feet and the blue ones had three feet. How many of each type of creature landed in my yard?
______GREEN ONES ______BLUE ONES

algebra - Steve, Tuesday, December 13, 2011 at 11:04am
h = heads = 91
f = feet = 124

3 + 2g + 2b = 91
4 + 2g + 3b = 124

2g + 2b = 88
2g + 3b = 120
b = 32
g = 12

Call 911!

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