Unknown number quarter

A quarter of an unknown number multiplied by 4 equals 30% of that unknown number. Determine the unknown number.

Final Answer:

x =  80

Step-by-step explanation:

r=30%=10030=103=0.3  4x+4=r x 4x+4=0.3 x  x/4+4=0.3 x  0.2x=16  x=0.216=80  x=80



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You need to know the following knowledge to solve this word math problem:

algebrabasic operations and conceptsnumbersGrade of the word problem

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