Question

22%oF? +30%0f 420=192​

Answer 1

Answer:

490

Step-by-step explanation:

$\ 22 \% of \ ? + 30\%of 420 =192\\\\\ \frac{22}{100}of\ ? + \frac{30}{100}of 420=192\\\\\ \frac{22?}{100}+\frac{30*420}{100}=192\\\\\ \frac{22?}{100} + 84=192\\\\\ \frac{22?}{100}=192-84=108\\\\\ ? = \frac{108*100}{22}=4.90*100=490$