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NeX [460]
3 years ago
9

I would like to know how to solve these sort of questions

Mathematics
1 answer:
jenyasd209 [6]3 years ago
6 0

Answer:

Step-by-step explanation:

10) First find the capacity of the swimming pool.

Volume of the swimming pool= length * depth  *width

                                                 = 15 * 1.5 * 5

                                                  = 112.5 cubic meter

1 cubic meter= 1000 liters

112.5 cubic m = 112.5* 1000 = 112,500 liters

Quantity of salt added to every 10 000 liters = 2 Kg

Quantity of salt added to  112,500 liters =  \dfrac{2}{10000}*112500

       = 22.5 Kg

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Scilla [17]
The answer is D. First add 2k, then divide by a, the subtract x, then divide by -1
4 0
3 years ago
Lena estimated the height of a desk to be 38 inches. The actual height is 41 inches.
Leno4ka [110]

Answer:

7.3%

Step-by-step explanation:

First you have to find out what 38 out of 41 is as a percentage

This is 92.68%

so now we have to do

100.00 - 92.68 this is 7.32

But you said round to the nearest tenth so it would actually be rounded down to 7.3%

4 0
2 years ago
Read 2 more answers
The radius of a square is 16 cm what is the area
sdas [7]
Radius is normally used for a circle
in a circle, radius is the distance form the center of the circle to the outer edge of the circle
area=legnth times width or in square area=legnth times legneth
since this is a square and this is a math problem, we will assume that radius=1/2legnth  so
if radius=16 then legnth =2 times 16=32
area=32 times 32=1042

area=1042 square cm or 1042 cm^2
6 0
3 years ago
Read 2 more answers
3 3/5 x 1/4 *Simply your answer if you can
3241004551 [841]

Answer:

9/10 or 0.9

Step-by-step explanation: hope this helps

3 0
3 years ago
How many lines of symmetry does a regular octagon have?
Lesechka [4]

Answer:

8

Step-by-step explanation:

  • An Equilateral Triangle (3 sides) has 3 Lines of Symmetry
  • A Regular Pentagon (5 sides) has 5 Lines of Symmetry
  • A Regular Hexagon (6 sides) has 6 Lines of Symmetry
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  • A Regular Octagon (8 sides) has 8 Lines of Symmetry
7 0
3 years ago
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