Answer:
<em>Equation:
</em>
<em>HCL + HCL = HCL
</em>
<em><u>0.30x + 0.45(50-x) = 0.35*50
</u></em>
<em><u>Multiply thru by 100 to get:
</u></em>
<em><u>30x + 45*50 - 45x = 35*50</u></em>
<em><u>-15x = -10*50
</u></em>
<em><u>x = (2/3)50
</u></em>
<em><u>x = 33 1/3 liters (amt. of 30% solution needed in the mixture)
</u></em>
<em><u>50-x = 16 2/3 liters (amt. of 45% solution needed in the mixture)
</u></em>
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Step-by-step explanation:
Answer:
18% Decrease.
Step-by-step explanation:
You can use this formula for % decrease questions. :)
Decrease= Starting value (original) - Final Value (the smaller number) / starting value x 100.
Hope this helps,
Azumayay
Answer:
1040
Step-by-step explanation:
Circumference of the Circle: 439.82
Add that to the length of the rectangle time two: 439.82+(300x2)
That will give you the perimeter around the entire track:
439.82+(300x2)
439.82+600
1039.82
Rounded that is: 1040
<em>Hope this Helps :)</em>
Answer:60
Step-by-step explanation: