Solve the system of equations 2x+7y=-5 and-x-6y=10

x=8 and y= -3

Step-by-step explanation:

2x + 7y= -5. eqn 1 ×6

-x -6y = 10. eqn 2 ×7

12x + 42y = -30

+

-7x - 42y = 70

= 5x= 40

x= 8

to find y

substitute x into eqn 2

-8-6y=10

-6y=10+8

-6y=18

therefore 6=-3

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation:

step-by-step :