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kkurt [141]
3 years ago
12

Determine the amounts of 20% and 50% salt solutions that should be mixed to obtain 300 gallons of 41% salt solution.

Mathematics
1 answer:
tresset_1 [31]3 years ago
3 0
Assume that solution with 20% and 50% salt is x and y gallons respectively.

Therefore,

x+y = 300 => y=300-x

Additionally
20x+50y = 300*41 = 12300

Substituting for y

20x+50(300-x) = 12300 => 20x+15000-50x = 123000 => -30x = -2700

x= 90 gallons
y= 300-x = 300 - 90 =210 gallons

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F (x + 3)2 = 42, what is the approximate positive value of x?
DaniilM [7]

Answer:

3.48

Step-by-step explanation:

I took the test.

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4 years ago
What is the volume of the triangular prism shown below ?
jekas [21]

Answer:

B

Step-by-step explanation:

The volume (V) of a triangular prism is

V = area of triangular end × length

area of Δ = \frac{1}{2} bh

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7 0
3 years ago
Read 2 more answers
I need help with this. I also need to know how you found out those answers.
pochemuha
A= 35° because 180°-80°-65°= 35°

b=50° because 180°-95°-35°= 50°

c=85° because 180°-95°= 85°

d=30° because 180°-65°-85°= 30°

For these you just have to remember that the sum of the angles of a triangle is 180°, and the same for a straight line.
5 0
4 years ago
35% of salt is in feta cheese. What percentage of salt is in that 350 g cheese?
xxMikexx [17]

The amount of salt is in the 350 g of feta cheese, when there is 35% of salt is in cheese, is 122.5 grams.

<h3>What is percentage of a number?</h3>

Percentage of a number is the part of the whole number which is expressed in the fraction of hundredth. It is represented with "%" symbol.

35% of salt is in feta cheese. The percentage of salt is in that 350 g cheese has to be found out.

Let suppose there is x grams of slat in feta cheese of 350 g. Thus, the amount of salt (35% of 350) is,

x=\dfrac{35}{100}\times350\\x=122.5\rm\; gm

Thus, the amount of salt is in the 350 g of feta cheese, when there is 35% of salt is in cheese, is 122.5 grams.

Learn more about the percentage here;

brainly.com/question/2085058

#SPJ1

5 0
2 years ago
Please help my mom is gonna hit me if i don't get it right. <br> the answer is NOT 18
Nookie1986 [14]

Answer:

Lol I hope she didn't hit you yet. The answer is x=14 :)

Step-by-step explanation:

So the first thing that you would want to do is find what 9 is multiplied by to get 21. To do this, we can just do a simple algebraic equation: 9x=21. The answer is 7/3 because mAgIc. So now, we can also multiply 6 by 7/3. this would be 42/3 because of more MaGiC. 42/3 divides into 14 because im  just obviously a mage. lol I hope this helped.

6 0
3 years ago
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