Step-by-step explanation:
the calculation is included. I hope its self explanatory
If 20% of a number is 35, what is 50% of that number?
2 answers:
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To make a square for x²+bx=c, add( 
)²on both side
in this case, b is-3/4, half of b is -3/8, and (-3/8)² is 9/64, so you add 9/64 to both side.
in this case, b is-3/4, half of b is -3/8, and (-3/8)² is 9/64, so you add 9/64 to both side.