Answer:
160 is 20% of 800
Step-by-step explanation:
METHOD 1:
[tex]\begin{array}{ccc}100\%&-&800\\\\20\%&-&x\end{array}\qquad\text{cross multiply}\\\\\\100x=(20)(800)\qquad\text{divide both sides by 100}\\x=(20)(8)\\\boxed{x=160}[/tex]
METHOD 2:
[tex]\begin{array}{cccc}100\%&-&800&\text{divide both sides by 5}\\\\100\%:5&-&800:5\\\\20\%&-&160\end{array}[/tex]
METHOD 3:
[tex]p\%=\dfrac{p}{100}\\\\20\%=\dfrac{20}{100}=\dfrac{2}{10}=0.2\\\\20\%\ of\ 800\to0.2\cdot800=160[/tex]
