Trent and Devonte began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Trent took a test in Math and earned a 71.3, and Devonte took a test in Science and earned a 70.6. Use the fact that all the students' test grades in the Math class had a mean of 70 and a standard deviation of 9.5, and all the students' test grades in Science had a mean of 63.6 and a standard deviation of 9.1

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

a orange at the grocery store idk what other product that could be

hi there, i would be interested to you with your test, may you add the questions and answer options.

- : )