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3/5 of a number is 21 find the number

User Swhitman
by
5.7k points

2 Answers

1 vote

Answer:

35

Explanation:

Divide 21 by 3, then multiply that number by 5.

I could be incorrect though

User Emile Pels
by
5.7k points
4 votes

Hey there!

"
\bold{(3)/(5) } of a number is
\bold{21} find the number "
\bold{(3)/(5) =(3)/(5) }"
\bold{of = multiplication}
\bold{a}
\bold{number} is a
\bold{unknown} so we will label it as
\bold{x}
\bold{21 = 21}So, let's now solve our equation
\bold{(3)/(5)(x) 21 }Firstly, reverse the fraction, (
\bold{(5)/(3) }) then,
\bold{multiply} it on both of your sides
\bold{(5)/(3)*(3)/(5)x}
\bold{= (5)/(3) * 21  }
\bold{Cancel: (5)/(3) * (3)/(5)x}
\bold{Keep: (3)/(5)*21 } (Solve this, and you will get your answer)
\bold{Answer: x =35}

Good luck on your assignment and enjoy your day! ~


\bold{LoveYourselfFirst:)}


User MDStephens
by
6.0k points