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.
Answer:
You need to give us the possible answers first.
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
<u>Find a number that is 4 more that is 4 more than 6 plus 4</u>
4 more than 6 plus 4
6 + 4 = 10
4 more means 4 + (6 +4)
= 14
Answer:
x > 48
Step-by-step explanation:
Given
x - 2 > 22 ( add 2 to both sides )
x > 24 ( multiply both sides by 2 )
x > 48
Answer:
100 for the square
217.81 for the entire firgue
Step-by-step explanation:
For the square it's bh so do that formula
A = 10x10
A = 100
then for the semicircles that's half of a circle do the area of a circle formula and then multiply by half
A = 3.14×25
A = 78.54×0.5
A = 39.27
since we have 3 of them we are going multiply that by 3.
39.27 × 3 = 117.81
then we add them all up
117.81 + 100 = 217.81
