SOLUTION: In a math class of 26 students, each girl drew a triangle and each boy drew a rectangle.There were 92 sides in all. How many girls and how many boys were in the class?

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Question 337911: In a math class of 26 students, each girl drew a triangle and each boy
drew a rectangle.There were 92 sides in all. How many girls and how
many boys were in the class?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let R be the number of rectangles, T triangles.
1.R%2BT=26
2.4R%2B3T=92
From eq. 1,
R=26-T
Substitute into eq. 2,
4%2826-T%29%2B3T=92
104-4T%2B3T=92
-T=-8
highlight%28T=8%29
Then from eq. 1,
R%2B8=26
highlight%28R=18%29