Question

pls do this guys..... plssssssssss​

Answer 1

(1) (b) 34

x/-40 = -17/20

Cross multiply them :

=> 20x = (-17) × (-40)

=> 20x = 680

=> x = 680/20

=> x = 34

(2) (d) -34/25

Let the unknown rational number be z :

=> -25/16 × z = -17/8

=> z = -17/8 ÷ (-25)/16

=> z = -17/8 × 16/-25

=> z = -17/1 × 2/-25

=>z = -34/-25

Maybe the options are wrong.

(3) (c) -1

Let p/q be a non-zero rational number.

Then, p, q ≠ 0.

Its additive inverse is -p/q.

So, p/q + (-p)/q

=> -p/q + p/q = 0

=> On dividing p/q by -p/q, we get -1.

✌️Good morning✌️

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Answer 2

Answer:

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