Question

Alka and Noori, two students of class IX, together contributed Rs 500 towards Prime Minister’s Relief Fund to help earthquake victims. Write a linear equation which satisfies this data and draw the graph of the same. Find the value of a for which the equation 2x + ay = 5 has (1, –1) as a solution. Find two more soluiotns for the equation obtained. If the number of hours for which a labourer works is x and y are his wages (in rupees) and y = 2x – 1, draw the graph of the work-wages equation. From the graph, find the wages of the labourer if he works for 6 hours.

Answer 1

1st Part

Let Alka's contribution be x

Noori's contribution y

x+y=500

2nd Part

Step-by-step explanation:

First we will find the value of a in the given equation

2x+ay=5

Where x=1 and y= - 1

2(1) +a(-1) =5

2-a=5

-a=5-2

-a=3

a=-3

Now we got equation 2x-3y=5

First step

Let y=3

2x -3(3)=5

2x-9=5

2x=5+9

2x=14

x=14/2

x=7

Second solution

Let y=1

2x-3(1) =5

2x-3=5

2x=5+3

2x=8

x=8/2

x=4

Therefore the two solutions are (7, 3) and (4, 1)

The Answer for the 3rd part is in the attachment.

Kindly mark brainliest!

Answer 2

Answer:

pls answer fast 三三三