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Finger [1]
3 years ago
12

A laboratory technician needs to make a ​81-liter batch of a ​20% acid solution. How can the laboratory technician combine a bat

ch of an acid solution that is pure acid with another that is ​10% to get the desired​ concentration?
Mathematics
1 answer:
Ludmilka [50]3 years ago
5 0
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Can you guys help me!!!
Gnesinka [82]

I cant see the question, id help if i could

7 0
2 years ago
Solve for k: 3k - 8 = 22.<br><br><br> possible answers:<br> -10<br> 14/3<br> 15<br> 10
exis [7]

Answer:

???

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
HELPPPP What is the volume of the square pyramid? Use Pythagorean’s Theorem to find the height of the pyramid
aalyn [17]

Answer: 4,111.7 mm³

Step-by-step explanation:

You need to use this formula to calculate the volume of the square pyramid:

V=\frac{s^2h}{3}

Where "s" is the lenght of any side of the square base and "h" is the height of the pyramid.

Find the height with the Pythagorean Theorem:

a^2=b^2+c^2

Where "a" is the hypotenuse and "b" and "c" are the legs of the right triangle. Let be "c" the height of the pyramid.

You can identify in the figure that:

a=26mm\\\\b=\frac{23mm}{2}=11.5mm\\\\c=h

Then, you can find the height:

(26mm)^2=(11.5mm)^2+h^2\\\\h=\sqrt{(26mm)^2-(11.5mm)^2}\\\\h=23.318mm

Then, knowing that:

s=23mm\\h=23.318mm

You can calculate the volume:

 V=\frac{(23mm)^2(23.318mm)}{3}=4,111.7mm^3

3 0
3 years ago
Please I need help. you will get points ​
iragen [17]

Answer:

t(32) = 94

Step-by-step explanation:

a. I think s is the independent variable

b I think t or t(s) is the dependent variable since the total amount of money depends on how many treats are sold.

t(32) = 30 + 2(32)

t(32) = 30 + 64

t(32) = 94

I'm a little unsure on the dependent and independent variable but I know the function is correct.

Hope this helps :)

7 0
3 years ago
The value of a is the value of B is the value of C is
enyata [817]

Answer:

A: 5

B: 9

C: 32

I hope this helps the people who're looking for this answer!

5 0
2 years ago
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