Question

Michelle plans to cover two walls of her rectangular room with wallpaper, as shown below.



A roll of wallpaper is 10 meters long and 0.5 meters wide. Assuming that there is no wastage, how many rolls of wallpaper would Michelle require to cover the two walls?

Answer 1

How big are the walls?

Answer 2

10 by .5 = area of 1 roll
(6 by 5)*2=wall area

Answer 3

go from there.

Answer 4

huh?

Answer 5

oh it's 12

Answer 6

10 times 0.5 =the covering area of one roll of wallpaper, right?
And 6 times 5 = the surface area of the walls...?

Answer 7

Don't forget to bestow medals to your helpers :)

Answer 8

so it is 12?