Solve x^2+12x=-11by completing the square which is the solution set of the equation A={-11,-1} B={-11,1} C={11,-1} D={11,1}
2 answers:
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Answer:
Step-by-step explanation:
Multiply both sides by 7
Divide both sides by 8
x = 7
Answer:
Step-by-step explanation:
Let x be the number plums that Mary had
Number of plums received by her brother = (1/4) of x =(1/4)x
Number of plums received by her sister = (1/3)x
Remaining plums is 20.
Total plums - (plums given to brother + plums given to sister) = 20
Number of plums with Mary = 48
Number of plums received by brother= (1/4)*48 = 12 plums
Number of plums received by sister = (1/3)*48 = 16 plums
16 - 12 = 4
Her sister received 4 plums more than her brother