Question

If the cube of 1+3/5 is 4+x/125 then find x.

Answer 1

Answer:

12

step-by-step explanation:

• (1+3/5)^3=4+x/125)

Simplifying left hand side of equation.

• (1+3/5)^3=(8/5)=512/125.4

12/125=4+12/125

Comparing left and right hand sides

• 4+12/125=4+x/125
• 12/125=x/125

x=12

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