please look at the photo attached, its really confusing me so even if you dont know the answer can you atleast give me tips on how to do it? note: the rectangle is 4cmx11.5cm, scaled up it is 8mx23m

The area of the rectangle in meters = 8x 23 = 184 square meters.

The area of one board = 1.2 x 1 = 1.2 square meters

Total area of all the boards = 1.2 x 150 = 180 square meters.

180 is less than 184 so she does not have enough boards.

the answer is true.

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)