You need to add 2 L of the 75% mixture to get a mixture that is 60% antifreeze.
<h3>What is an antifreeze?</h3>
Anti freeze is a substance that is added in order to prevent a liquid from freezing. An antifreeze is usually an ionic substances that is used during the winter to prevent the freezing of a liquid.
Now;
Forming the equation;
0.75*x+0.5*3=0.6(3+x)
Hence;
0.75*x+1.5=1.8+0.6x
Therefore;
0.75x-0.6x=1.8-1.5
We obtain;
0.15x=0.3
Then;
x=2L
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Answer:
Q'(-2 , 5)
Step-by-step explanation:
Note that:
1) When you are reflecting over the x-axis, you are changing the sign for the y.
2) When you are reflecting over the y-axis, you are changing the sign for the x.
In this case, you are reflecting over the y-axis. Change the sign of the x:
Q(2 , 5) ⇒ Q'(-2 , 5)
Q'(-2 , 5) is your answer.
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Answer:
∠8=130°
Step-by-step explanation:
∠8=∠1=180°-∠3=180°-50°=130°
For this problem wouldn't you just take 2 meters and subtract by 39 centimeters? If so, then 2 meters - 39 centimeters = 1.61 meters.