<em>x</em> = liters of 40% solution, which contributes a total of 0.4<em>x</em> liters of acid
<em>y</em> = liters of 30% solution, which contributes a total of 0.3<em>y</em> liters of acid
The chemist wants to end up with 50 liters, so
<em>x</em> + <em>y</em> = 50
and 36% of this -- 0.36 (50 liters) = 18 liters -- is acid, so that
0.4<em>x</em> + 0.3<em>y</em> = 18
Solve for <em>x</em> and <em>y</em> :
<em>y</em> = 50 - <em>x</em>
0.4<em>x</em> + 0.3 (50 - <em>x</em>) = 18
0.4<em>x</em> + 15 - 0.3<em>x</em> = 18
0.1<em>x</em> = 3
<em>x</em> = 30
<em>y</em> = 20
Answer:
umm i didnt understand completly but here is a link
https://www.essaycomplex.com/1-visit-web-site-well-known-company-find-section-states-mission-answer-following-questions-tip-companys-web-site-doesnt-describe-missio/
Explanation: