Question

Express 9² as the sum of two consecutive integers. a) 40 +41 b) 50+31 c) 36+45 d) 72 +9​

Answer 1

Answer:

a) 40+41

Step-by-step explanation:

9²= 81

let the smaller of the consecutive integer be x,

then other integer= x+1

∴ (x)+(x+1) = 9²

2x+1=81

2x=81-1

2x=80

x=40

and x+1=41

therefore 9² can be represented as the sum of 40 and 41.

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