Question

make 5 linear equations related to real life situations

Answer 1

1. The cost of 4 pencils and 5 erasers is Rs 20.

( Let the cost of 1 pencil be Rs 'x' and 1 eraser be Rs'y'.

Linear equation: 4x+5y = 20)

2. Prisha is twice as old as her friend  Rani.

(Let Rani's age be 'x' years and Prisha's age be 'y' years.

y= 2x

y - 2x = 0)

3.  I bought a printer for Rs 5000 and the ink cartridges cost Rs 1400 each.  The relationship between ink cartridges and total cost:

(Let the total cost be 'y' and cartridges cost be 'x'.

So, total cost = 1400 x + 5000

y = 1400 x+5000)

4. A taxi have a fixed charge of Rs.200 plus Rs.50 for every hour.

(Let the total fare be Rs 'y' and additional hour is 't'

Total fare=50t+200

y=50t+200)

5. Akhil is driving car at a speed of 60km/hour.

(Let the distance covered be 'd' and time be 't'.

d = 60t)