Answer:
20
Step-by-step explanation:
Find 30% of the class
then add it
30% x 14 / 70% = 6
6 + 14 = 20 kids
Hope it helped ! Have a nice day !
we know that 14 is 70%, how much will it be for 100%? or namely the whole class?
[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 14 & 70\\ x& 100 \end{array} \implies \cfrac{14}{x}=\cfrac{70}{100}\implies \cfrac{14}{x}=\cfrac{7}{10} \\\\\\ 140=7x\implies \cfrac{140}{7}=x\implies 20=x[/tex]
