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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?

Sagot :

Answer:

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

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