Maisie knows that she needs 3kg of grass seed to make a rectangular lawn 5m by 9m. Grass seed is sold in 2 kg boxes.
Maisie wants to make a rectangular lawn 10m by 14m. She has 5 boxes of grass seed.
Has maisie got enough grass seed to make a lawn 10m by 14m?

5 boxes is needed or 10 kg of seeds so yes!!

Step-by-step explanation:

first of all we know that the area of 9by 5 (9x5) is 45 and 45=3 kg of seed, so divide 45 ( the area) by 3 (the amount of kg) and so 45 ÷ 3 is 15 so now you have a UNIT of 1kg for every 15 square Meters, and 140 needs a little more than 9.3 kg worth of seeds so she has enough :)

The other words are just meant to be confusing just think of ratios :P

1kg:15m

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation: