A scientist needs 60 liters of a 60% acid solution. He currently has a 40% solution and a 70% solution. How many liters of each does he need to make the needed 60 liters of 60% acid solution?
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Equation:
acid + acid = acid
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0.40x + 0.70(60-x) = 0.60*60
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40x + 70*60 - 70x = 60*60
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-30x = -10*60
x = 20 liters
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Gabe needs 20 liters of the 40% solution.
He also needs 40 liters of the 70% solution.
It’s A::92 hopefully this helps you!.:)
The researchers used data from 10 trials so they could compare each trial or use the information in all, its better to use more than one so you can compare and see the difference.
Answer:
$38.64/4 = $9.66
its $9.66 for each yard
so $9.66 multiplied by 6 = $57.96
she should expect to pay $57.96 extra.
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
