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Elza [17]
2 years ago
13

The elements that compose seawater, along with the corresponding percents, are shownin the table.Mrs. Buller collects a 500-ml s

ample of seawater for her chemistry class. How many mlof chlorine are in the sample?

Mathematics
1 answer:
belka [17]2 years ago
3 0

Answer: Mrs.Buller collects a 500-ml sample of seawater for her chemistry class, and it has 1.94% of chlorine, we have to determine the amount of chlorine in the sample:

\begin{gathered} C=\frac{1.94}{100}\times500=9.7ml \\ C=9.7ml \end{gathered}

Therefore the chlorine content in 500ml of water is 9.7ml.

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Andreas93 [3]

Answer:

20

Step-by-step explanation:

4 x 5 = 20

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3 years ago
I don’t understand- due tomorrow please help ASAP
Mashutka [201]
For which one I might be able to help
6 0
4 years ago
Determine the domain of the following graph​
blsea [12.9K]

Answer:

Domain: [-8. 4]

General Formulas and Concepts:

<u>Algebra</u><em><u> </u></em><u>I</u>

  • Domain is the set of x-values that can be inputted into function f(x)
  • Interval Notation

Step-by-step explanation:

From the graph, we can see that our x-values span from -8 to 4. Since both are closed dot, they are inclusive in the domain:

[-8. 4] or -8 ≤ x ≤ 4

3 0
3 years ago
A path 5m wide is to be built along the border and inside a square garden of side 90m. Find the cost of cementing the path at th
gizmo_the_mogwai [7]

Answer:

Total cost of cementing the path = Rs. 17,000.

Step-by-step explanation:

Let the square garden be ABCD

Let the region inside the garden (ABCD) be WXYZ.

<u>Given the following data;</u>

Length of sides of ABCD = 90m

Width of path = 5m

Cost = Rs. 10 per m²

Area of ABCD = 90 * 90

Area of ABCD = 8100m²

<em>To find the area of WXYZ;</em>

WX = WZ = 90 - (5 + 5)

WX = WZ = 90 - 10

WX = WZ = 80m

Area of WXYZ = WX * WZ

Substituting into the equation, we have;

Area of WXYZ = 80 * 80

Area of WXYZ = 6400 m²

Area of path = Area of ABCD - Area of WXYZ

Area of path = 8100 - 6400

Area of path = 1700 m²

Total cost of cementing the path = Area of path * cost

Total cost of cementing the path = 1700 * 10

<em>Total cost of cementing the path = Rs. 17,000</em>

6 0
3 years ago
Can someone help me and show work I don’t get it
aivan3 [116]

Answer:

Step-by-step explanation:

2x+4 = 7x-1

4+1 = 7x - 2x

5 = 5x

x = 5/5

x = 1

hope this helps

8 0
3 years ago
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