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Elan Coil [88]
2 years ago
11

A tank contains 100 kg of salt and 2000 L of water. A solution of a concentration 0.025 kg of salt per liter enters a tank at th

e rate 8 L/min. The solution is mixed and drains from the tank at the same rate.
Required:
a. What is the concentration of our solution in the tank initially?
b. Find the amount of salt in the tank after 4.5 hours.
c. Find the concentration of salt in the solution in the tank as time approaches infinity.
Mathematics
1 answer:
yawa3891 [41]2 years ago
5 0

Answer:

Like yeah right

Step-by-step explanation:

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Rob is making a tent out of canvas in the shape of a square pyramid. Each side of the square base is 6 feet long, and the height
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The amount of balloons in the tent is 125.075 feet cube. From the given options, approximately, option D is correct

<u>Solution:</u>

Given, Rob is making a tent out of canvas in the shape of a square pyramid.  Each side of the square base is 6 feet long, and the height is 6.3 feet.  

Rob filled the tent with balloons,  

We have to find which measurement BEST describes the amount of balloons in the tent?  

As tent if filled with balloons the amount of balloons equals with volume of tent.

<em><u>Volume of tent is given as:</u></em>

\text { volume of tent }=a^{2}+2 a \sqrt{\frac{a^{2}}{4}+h^{2}}

where "a" is side length and "h" is height.

\begin{array}{l}{\text { Then, Volume }=6.3^{2}+2(6.3) \sqrt{\frac{6.3^{2}}{4}+6^{2}}} \\\\ {=39.69+12.6 \sqrt{9.925+36}} \\\\ {=39.69+12.6 \times 6.7766=39.69+85.385} \\\\ {=125.075 \mathrm{ft}^{3}}\end{array}

Hence, from the given options, approximately, option D is correct.  

6 0
3 years ago
Read 2 more answers
How many times can two go into 99
Tomtit [17]

Answer:

49.5

Step-by-step explanation:

99 divided by 2

6 0
3 years ago
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Ms. Allen asked each of her 30 students to select their favorite type of music. How many students chose Rock 1/3 chose hip hop 1
dalvyx [7]

Answer: 14

Step-by-step explanation:

Fraction that choose hip hop= 1/3

Fraction that choose rap = 1/5

Fraction that choose rock will be:

= 1 - (1/3 + 1/5)

= 1 - (5/15 + 3/15)

= 1 - 8/15

= 7/15

Number of students that choose rock will be:

= 7/15 × 30

= 7 × 2

= 14 students

We then multi

5 0
2 years ago
Given the domain {-2, 1,5}, what is the range for the relation 4x +y = 3?
Simora [160]

Answer: (11, -1, -17)

Step-by-step explanation:

4x+y=3

4(-2)+y=3

-8+y=3

y=3+8

y=11

4x+y=3

4.1+y=3

4+y=3

y=3-4

y=-1

4x+y=3

4.5+y=3

20+y=3

y=3-20

y= -17

3 0
3 years ago
Find the area of the figure. (Sides meet at right angles.)
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Area is 50 m^2
5 x 3 = 15
7 x 5 = 35
35 + 15 = 50 m^2
6 0
2 years ago
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