Answer:

Step-by-step explanation:

= 
Answer:
C) 36 feet
Explanation:
P(square)= 4s
s= square root of the area

Answer: ah yes of course 5 head
Step-by-step explanation:
lol
Answer:
800 mL
Step-by-step explanation:
Let b represent the amount of solution B added to 2400 mL of solution A. The total amount of alcohol (mL) in the mixture is ...
10%×2400 + 50%×b = 20%×(2400 +b)
multiplying by 100 to get rid of the % signs and simplifying, we have ...
24000 +50b = 48000 +20b
30b = 24000 . . . . . . . . . subtract 24000+20b
b = 800 . . . . . . . . . . . . . . divide by 30
Debra added 800 mL of 50% alcohol to her 2400 mL of 10% alcohol to make a 20% solution.
Answer:

Step-by-step explanation:

•you divide both sides by 21 to leave x alone