Question

Add it:- b) Simplify:-

x, 5x, 2x, 3x. 9x³-10x³ + 8x³

[3]

[4]

[3]

[3]

c) In which subject did Aman obtain the highest % mark? Science 325 out of 500, Maths: 240 out of 400,

English: 84 out of 150, Hindi: 132 out of 200.

Question-4

a) Find the sum of: 5x+ 5x-6 and 4x²-x+ 8. b) Subtract: 7x-4y from 8x-y.

[4]

[3]

[3] c) A person bought 5,400 books in a month and sold 4050 books. What​

Answer 1

Answer:

Here's your answers buddy.

There are some incomplete questions.

Please do recheck and ask again!

Please mark as brainliest.

Step-by-step explanation:

b) Simplify:

x+5x+2x+3x (no sign is given!)

= 11x

9x³-10x³+8x³

= 7x³

c) Percentage in:

Science = 325/500 × 100 = 65%

Maths = 240/400 × 100 = 60%

English = 84/150 × 100 = 56%

Hindi = 132/200 × 100 = 66%

Therefore highest percentage was scored in Hindi.

a) Find the sum of: 5x+ 5x-6 and 4x²-x+ 8

= 5x + 5x - 6 + 4x² - x + 8

= 4x² + 5x + 5x - x - 6 + 8

= 4x² + 9x + 2

Subtract: 7x-4y from 8x-y

8x-y -(7x - 4y)

= 8x - y - 7x + 4y

= x + 3y

[3] c) A person bought 5,400 books in a month and sold 4050 books. What ????

Please atleast mention what to do with the information.