D is 11
2d - 5 = 17 add 5 to both sides
2d = 22 divide by 2
d = 11 answer
Consider the suggested option:
1) if in 20 gr. of 50% solution given, then pure salt in this mix is 0.5*20=10 gr., and pure water is 0.5*20=10 gr.
2) after Maya added 5 gr. pure salt is 10+5=15 gr. Total mass of mix is 15(pure salt)+10(pure water)=25 gr.
3) new solution is 15/25=0.6 or 60%.
Answer: 25 gr. of 60% salt solution.
Since only 1/10 arrived, you multiply this number by 4,000 which gives you 400. The answer is 400.
Answer:
it's black
Step-by-step explanation:
I can't see the question.
