Uncover valuable information and solutions with IDNLearn.com's extensive Q&A platform. Get prompt and accurate answers to your questions from our community of knowledgeable experts.
Answer:
[tex]50\% = 30 \\ 70\% = x \\ \\ 50\%x = 30 \times 70\% \\ x = \frac{30 \times 70\%}{50\%} \\ x = 42 \\ hence \: 70\% \: is \: 42[/tex]