In aflood relief camp, there is a provision of hood for 4000 people for 190 days. After 30 days, 800 people wen elcewhere. Let's find for how to many days the remaining food lait lasts for the remaining people in the camp:

the answer will be

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.