5. Solve the system of equations by substitution. Show the work that would correspond with the substitution method like in your RSGs.
Sy = -2x - 5
(5x - 2y = 19

(1,-7)

(0,-5)

(-5,0)

(-7,1)

Do 12/14 and 8/10 have the same value? explain your answer.

The triangles are similar. what is the value of x? show your work.

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x