SOLUTION: Students created a trapezoid from the cans they had collected for the food bank. There were 10 rows in the trapezoid. The bottom row had 100 cans. The 10th row has 136 cans. How

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Students created a trapezoid from the cans they had collected for the food bank. There were 10 rows in the trapezoid. The bottom row had 100 cans. The 10th row has 136 cans. How      Log On

It's an arithmetic sequence

Substitute n=10 in





Substitute for  and 
and simplify:







So each row had 4 more cans than the preceding row.

Substitute a1 = 100, n=8, and d=4 in



You finish.

Edwin