Answer:
Step-by-step explanation:
Let x be the added 20% solution.
<u>The salt content is same:</u>
- 50*0.6 + x*0.2 = 0.28*(x + 50)
- 30 + 0.2x = 0.28x + 14
- 0.28x - 0.2x = 30 - 14
- 0.08x = 16
- x = 16/0.08
- x = 200
Answer:
3) x=3
I only know the answer for number 3 I'm sorry lol
Step-by-step explanation:
Answer: negative
Step-by-step explanation:
Answer:
200+300=500
Step-by-step explanation:
200+300=500 or 100+400=500
15/24 because 5/3 X 1/4 = 5/12 X 3/2= 15/ 24
