Question

Can you do 35 36 37 38 39

Answer 1

Answer:

hope this will help you

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Answer 2

Answer:

39. refer to the attachment

36.. (a)

x + 5 = 2x - 5

Transfer x term in the left side and variables in the right side.

x - 2x = -5-5

-x = -10

Cancelling - on both the sides we get,

x = 10

(b)

$\frac{2x + 9}{7} = 5$

2x + 9 = 5 x 7

2x + 9 = 35

2x = 35 - 9

2x = 26

$x = \frac{26}{2}$

x = 13

37. (a)

Since it's in the ratio 3:7

so, we can take these ratio in the terms of x

3x and 7x

we know sum of two angles is 180

3x + 7x = 180

10 x = 180

$x = \frac{180}{10}$

x = 18

Now substitute the x value to find the angles

3x = (3)(18)

= 54

7x = (7)(18)

= 126

So the two angles are 126 degree and 54 degree.

(b)

The ratio is 7:5

7x + 5x = 24000

12 x = 24000

$x = \frac{24000}{12}$

x = 2000

Substitute x value

7x = 7x 2000

= 14000

5x = 5x 2000

= 10000

To find the income

Income = savings - expenditure

Income = 24000- 10000

Income = 14000 (I think this is the answer but not sure)

38.

water left for unused =10 - (2x1/5 + 3x1/3)

=10 - (11/5+10/3)

= 10- (2.2+3.3)

= 10-(5.5)

=10 - 5.5

water left for usused = 4.5 litre

39

refer to the attachment

40. Top metropolitan cities in India are

• Mumbai - 1.84 crores
• Chennai- 70.9 lakhs
• Bengaluru- 84.3 lakhs

i hope this will help u