Question

Ken used a piece of lumber to build a bookshelf. If he made three shelves that are each 2 1/2 feet long, how long was the piece of lumber?

Answer 1

3 different 2.5 foot pieces can be written as 3*2.5 or 2.5+2.5+2.5

Answer 2

A. 7 1/2
B. 6 1/2
C. 4 1/2
D. 5 feet

Answer 3

Can you not multiply 3 and 2 + 1/2?

Answer 4

So you're saying 2 plus 0.5?

Answer 5

I shouldn't have converted to decimal
\[3*2\frac{ 1 }{ 2 }=3*\frac{ 5 }{ 2 }\]

Answer 6

11/2

Answer 7

3*5 = 15 not 11.\[\frac{ 3 }{1 }*\frac{ 5 }{2 }= \frac{ 3*5 }{1*2 } = \frac{ 15 }{2 } =7 \frac{ 1 }{2 }\]

Answer 8

Okay so A

Answer 9

thanks

Answer 10

Yeah.