Question

DIRECT AND INVERSE ,,,,, 10, 11​

Answer 1

Answer:

-10

Step-by-step explanation:

convert it into negative

Answer 2

SOLUTION:

d= 4, t = 9

Difference between d and t is 9-4=5

that means value of t increases by 5 as against value of d

So when t= 21 ,

value of d= 21 - 5 = 16 ( answer)

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40 cm cost 420 g

1 cm cost 420/40 g

136 cm cost (420 * 136 )/ 40 g = 1428 g

So 136 cm cost 1428 g of copper

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