Answer:
4'9.87
Step-by-step explanation:
The answers is a because the radius must be 5
Answer:
20/3 ounces of water is added.
Step-by-step explanation:
how many ounces of pure water should be added to 20 ounces of 40% solution of muriatic acid to obtain a 30% solution of muriatic acid?
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The acid is 40% of 20 ounces = 8 ounces.
0.4*20 = 8
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That same 8 ounces is to be 30%. The water will be the other 70%.
8/30 = x/100
30x = 800
x = 80/3, the total amount of the solution.
We started with 20, so 80/3 - 20 = 20/3
20/3 ounces of water is added.
Hi there,
The percentage of 3/5 would be %60
3/5
3x20=60
5x20=100
Now you have 60/100, turn that into a percentage and you have %60.
