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NNADVOKAT [17]
3 years ago
13

the length of the rectangular field is 7 times of its breadth its area is 1792 square metres find the cost of fencing it at the

rate of rupees 1.5 per metre ​
Mathematics
1 answer:
vekshin13 years ago
7 0

Answer:

Step-by-step explanation:

first you would need to find the perimeter in order to find the cost of fencing.

x(7x)=1792

7x^2=1792

x^2=256

x=16

so you have x which is the width. now time to find the length

16 times 7 is 112

112 is your width

112+112+16+16 is 256, which is your perimeter.

256 times 1.5 is your cost, or 384 rupees

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During an experiment, Mrs. Melsoner uses an analytical scale to measure the mass of a substance. The analytical scale says she h
stich3 [128]

Answer:

hii there

The correct answer is ( D )

hope it helps you

have a nice day

7 0
2 years ago
The population of a town increases by 4 % every year . In the last year the population of the town was 110000.
TEA [102]

Answer:

114,400 and 118,976.

Step-by-step explanation:

Let's represent this using a function. Let's let:

P(y) represent the total population, and y represent the total number of years since last year.

We know that the population grows by 4% every year or 0.04 every year. This is exponential growth. We can write this as:

P(y)=110000(1.04)^y

Note that the coefficient is 110000 because that is the year we are starting with. Also, note that it is 1.04 because we are essentially adding .04 to the original population.

Anyways, to find the present population, set y equal to 1 (because 1 year after last year is the present year)

P(1)=110000(1.04)^1=114400

The present population is 114,400 people.

For next year, set y equal to 2 (2 years after last year is next year)>

P(2)=110000(1.04)^2=118976

The population next year will be 118,976 people.

3 0
3 years ago
Please please help me in these questions ​
boyakko [2]

a. a=40° (alternate interior angles)

b+40°=180°( supplementary angles)

b=140°

c= d= 140°( vertically opposite angles)

d=b=140°( corresponding angles)

b. 2a+120°=180° (supplementary angles)

2a=60°

a=30°

c. a+110°=180°( supplementary angles)

a=70°

b+70°=180°( supplementary angles)

b=110°

c+110°=180°( supplementary angles)

c=70°

c=d=70( corresponding angles)

3 0
2 years ago
Help me<br> Check it for me
Luden [163]

Answer:

£270

Step-by-step explanation:

Works 7.5 hours per shift and there are 5 shifts in a week, hence

hours worked per week = 7.5 × 5 = 37.5

Pay per hour = £7.20, thus

Earnings for a week = 37.5 × 7.20 = £270

3 0
2 years ago
4 in.<br> 7 in.<br> O 124 6 in<br> 87.9 in<br> O 97.5 in<br> O 78.9 in<br> 5<br> 6<br> 7
Dima020 [189]

Answer:

v=3.14 r 2 h

3.14 (2)(2)(7)= 87.9

5 0
2 years ago
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