Answer:
y = 57 - 3x
Step-by-step explanation:
Alice collected 57 skipping stones. And she skipped 3 stones a minute on her pond.
So. if y represents the number of stones left to her and x represents the number of minutes, then by the condition given we can write
y = 57 - 3x ..... (1)
So, this is equation of a straight line in the slope-intercept form. (Answer)
I don’t know if this is a joke or not but the answer is 6
Answer How many liters of a 20% acid solution should be mixed with 30 liters of 50% acid solution in order to obtain a 40% solution. ... x=15 liters 15*(.20 pure acid)=3 liters 30*(.50 pure acid)=15 liters That is 18 liters pure acid That is 45 liters solution *0.45 pure acid=18 liters.
As more pure acid is added, the concentration of acid approaches 0.
Answer: 0
Step-by-step explanation:
<u>Don't forget: </u>
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is greater than cosx ,so we have to evaluate 
