Solve each system of equations by substitution or elimination. y=x^2+5x+1 y=x^2+2x+1 i kinda understand how to do this but i have forgotten, show your steps when you solve it and tell me which method you used.

x=0 and y=1 is the answer.

Step-by-step explanation:

In the substitution method we get the value of x or y from one equation and then we put it in the second equation.

So we take the value of y from the first equation y=x²+5x+1 in the second equation.

⇒x²+5x+1 = x²+2x+1

Now we eliminate the common terms from both the sides

⇒5x = 2x

Now we subtract 2x from both the sides

5x-2x = 2x-2x

⇒ 3x = 0

Or x =0

Now we put x=0 in the first equation

y= x²+5x+1

y = 0+0+1 = 1

So the answer is x=0 and y=1

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.