450 because I trim the test and I k ow the answer
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
The attachment shows such an angle.
Answer:
5.6 x 10^3 (10 to the power of 3)
i.e. 5600 = 5.6 x 10^3 because you have to go back 3 times to get 5.6 *you cannot have a number less than 1 or more than 10*
So the power of 3 is the amount of times you had to move back
Step-by-step explanation:
This is how you write 5600 in standard form!
HOPE THIS HELPS!!
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