Math, asked by rudrakshswami13, 7 months ago

hi please don't give irrelevent answer and don't say that I had post whole worksheet see it's of 20 point . please help ​

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Answered by 4team
0

first mark my answer as brainliest first answer and vote me

I have done your 1st question 2nd, 6th and 7th only because it's so lengthy I know all your answer , but post one question at one time only, ok. it is your answers

it is 6th question

4x + = 15

3x 4 = = 7

Multiplying (1) by 4 and (2) by 6

16x + 24/y = 60

18x 24/ y = 42

Adding (3) and (4), We get

16x + 24/y = 60

+ 18x 24/y = 42

___________

34x = 102

X = 3

Substituting x = 3 in (1), We get

4(3) + 6/y =15 =

6/y =15 -12

y =6/3 = 2

Now,

y = ax - 2

2 = a(3) - 2

3a = 4

a = = 1;

it is 7th question

Given : P = Rs. 7,000; A = Rs job. 9,317 and r = 10%.

T

___

:A = P(1+ 100)"

10

___

9, 317 = 7,000(1+100 )"

9,317. (11 )

____. ___

7,000 = (10)"

1,331. (11)

____. ___

7,000. (10)"

( 11 )³. (11)"

___ =. __

( 10). (10)

On comparing,

n = 3 years

it is 2nd question

Solution

• 1= 4000 * 8*1100 = 320. A = 4000 + 320 = Rs. 4320. For 2nd year. P = Rs. 4320. R = 8%

• |= 4320 x 8 x 1 100 = Rs. 345.60. A = 4320 + 345.60 = 4665.60. Compound interest = Rs. 4665.60 - Rs. 4000 = Rs. 665.60.

• Simple interest for 2 years = 4000 x 8 x 2 100 = Rs. 640 Difference of Cl and St = 66560640 = Rs 25.60.

it is 1st question

For 1st year

P = Rs. 16000

R = 10%

T= 1 year

16000x10x1 = Rs. 1600

_________

100

A = 16000 + 1600 17600

For 2nd year,

P = Rs. 17600

R = 14%

T =1 year

17600x14x1 246400

_________. = ______. = Rs

100. 100

2464.

A = 1760 + 24654 =Rs. 20064

For 3rd year,

P = Rs. 20064

R = 15%

T= 1 year

20064x 15x1

__________. = 3009.60

100

Amount after 3 years = 20064 + 3009.60 = Rs. 23073.60

Compound interest = 23073.60

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