Answer:
Oooo I’m doing a question just like that one on my hw
Step-by-step explanation:
Answer:
3 gallons
Step-by-step explanation:
Let
x ----> the amount of pure acid (100% solution) in gallons
Remember that



we know that

solve for x


therefore
3 gallons of pure acid should be mixed with 3 gallons of a 20% acid solution in order to get a 60% acid solution
F(-5)=3(-5)+4=-11
g(-2)=4(-2)^2+2=18
Answer:
question 7 is A
Step-by-step explanation:
Answer:
ST=10
Step-by-step explanation: