Question

3/5 of a number is 21 find the number

Answer 1

Hey there!

"$\bold{\frac{3}{5} }$ of a number is $\bold{21}$ find the number "$\bold{\frac{3}{5} =\frac{3}{5} }$"$\bold{of = multiplication}$ $\bold{a}$  $\bold{number}$ is a $\bold{unknown}$ so we will label it as $\bold{x}$$\bold{21 = 21}$So, let's now solve our equation $\bold{\frac{3}{5}(x) 21 }$Firstly, reverse the fraction, ($\bold{\frac{5}{3} }$) then, $\bold{multiply}$  it on both of your sides $\bold{\frac{5}{3}\times\frac{3}{5}x}$ $\bold{= \frac{5}{3} \times 21 }$$\bold{Cancel: \frac{5}{3} \times \frac{3}{5}x}$$\bold{Keep: \frac{3}{5}\times21 }$ (Solve this, and you will get your answer)$\bold{Answer: x =35}$

Good luck on your assignment and enjoy your day! ~

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Answer 2

Answer:

35

Step-by-step explanation:

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

I could be incorrect though