Question

7.
The weight of 72 books is 9 kg.
(a) Find the weight of 80 such books.
(b) How many books will weigh 6 kg?
86​

Answer 1

Step-by-step explanation:

Weight of 72 books = 9kg

Weight of 1 book = 9\72

= 0.125 kg

Weight of 80 books = 0.125×80

= 10kg

b. numner of books weighing 6 kg = 6/0.125

= 48

Answer 2

Answer:

$1)80 \9 = 8.88kg and 2) 6 \ = 0.075kg$

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