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Olin [163]
3 years ago
11

R/18 = 1/9 r=? helpppp

Mathematics
2 answers:
Lorico [155]3 years ago
8 0

Step-by-step explanation:

2 is the answer..........

yaroslaw [1]3 years ago
6 0

Answer:

r = 2

Step-by-step explanation:

r/18 = 1/9

r = 1 * 18 /9

r = 18/9

r = 2

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Help please today
Annette [7]
D is the answer you are looking for
6 0
3 years ago
A pair of shoes which costs Rs 320 was sold at a loss of 5%what was the selling price if it is sold at profit of 20%find the gai
taurus [48]

Answer:

The Sell Price of the shoe at 5% loss is <u>Rs 304</u>.

The Sell Price of the shoe at 20% profit is <u>Rs 384</u>.

The Total Gain Percent is <u>12.5%</u> when shoes are sold at Rs.360.

Step-by-step explanation:

Given,

Cost Price(C.P.) of shoe = Rs 320

Case 1.

Loss = 5%

C.P. = Rs 320

Here loss percent and cost price of the shoe is given, we have to find out the selling price(S.P.) of the shoe.

For this we use the formula of  calculating S.P.

S.P. = \frac{C.P.(100-loss\%)}{100}

On substituting the given values, we get;

S.P. = \frac{320(100-5)}{100}\\\\S.P. =\frac{320\times 95}{100} =\frac{30400}{100} =Rs\ 304

The Sell Price of the shoe at 5% loss is <u>Rs 304</u>.

Case 2.

C.P. = Rs 320

Profit = 20%

Here profit percent and cost price of the shoe is given, we have to find out the selling price(S.P.) of the shoe.

For this we use the formula of  calculating S.P.

S.P. = \frac{C.P.(100+profit\%)}{100}

On substituting the given values, we get;

S.P. = \frac{320(100+20)}{100}\\\\S.P.=\frac{320\times 120}{100}=\frac{38400}{100}=Rs\ 384

The Sell Price of the shoe at 20% profit is <u>Rs 384</u>.

Case 3.

C.P. = Rs 320

S.P. = Rs 360

Now we need to find the gain percent.

First we will find the gain.

Gain is the difference of S.P with C.P.

Gain = 360-320 = 40

Now Gain Percent can be calculated by dividing gain with the cost price and then multiplying it with 100

Gain Percent = \frac{40}{320}\times 100 = 12.5\%

Hence The Total Gain Percent is <u>12.5%</u> when shoes are sold at Rs.360.

4 0
3 years ago
in the school cafeteria students chose their lunch from 3 sandwiches, 3 soups, 4 salads, and 2 drinks. how many different lunche
Vesna [10]

Answer:

Answer:

3

×

3

×

4

×

2

=

72

Explanation:

Let's look at the 3 sandwiches and 3 soups first and then expand the calculation. There are 9 ways I can have one of the sandwiches and 1 of the soups:

⎛

⎜

⎜

⎜

⎜

⎝

0

Soup 1

Soup 2

Soup 3

Sandwich 1

1

2

3

Sandwich 2

4

5

6

Sandwich 3

7

8

9

⎞

⎟

⎟

⎟

⎟

⎠

And so we can see that we multiply the number of sandwiches and the number of soups to get the total number of ways to get one of each.

The same works for more categories of choices, and so we multiply the 3 sandwiches, the 3 soups, 4 salads, and 2 drinks to get:

3

×

3

×

4

×

2

=

72


7 0
3 years ago
A radio tower is located on a coordinate system measured in miles. The range of a signal in a particular direction is modeled by
WITCHER [35]

im sorry i dont know the answer

8 0
3 years ago
What is the perimeter of a square with an area of 441 cm2? A) 21 cm B) 42 cm C) 56 cm D) 84 cm
artcher [175]

Answer:

D) 84cm

Step-by-step explanation:

Square area = √(441cm²) = 21 cm

perimeter = 4*21 = 84 cm

3 0
3 years ago
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