Assume that solution with 20% and 50% salt is x and y gallons respectively.
Therefore,
x+y = 300 => y=300-x
Additionally
20x+50y = 300*41 = 12300
Substituting for y
20x+50(300-x) = 12300 => 20x+15000-50x = 123000 => -30x = -2700
x= 90 gallons
y= 300-x = 300 - 90 =210 gallons
Answer: 9 feet below or -9 feet
Step-by-step explanation:
Let us say 0 is the surface of a pond. The turtle started at -2 and then traveled -7 more. We will add these negative values to each other.
-2 + -7 = -2 - 7 = -9
The turtle is now -9, or 9 feet below, the surface of the pond.
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Y= 850-18x
since you start with 850 ounces that will be your y intercept
each time you go down 18 ounces so the slope is -18
Answer:
Step-by-step explanation:
Let the number be 
.
Then,
This implies that;
We multiply both sides by 
to obtain;
Or
