Answer:
this is easy lol firs add 3+9 which will be 12 then 8+1 so its 9/12 and for the second one 12 +9 21 then 8+4 12/21
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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we know that
triangles BCD and ACE are similar
so, their ratios of sides must be equal
Calculation of y:
we can see that
AC=AB+BC
AC=y+3
CE=CD+DE
CE=4+6
CE=10
now, we can plug values
now, we can solve for y
Calculation of AC:
we know that
AC=y+3
we can plug y
and we get
...................Answer
Janejs anwksnskx dkd searional
Answer:
0.75
Step-by-step explanation: