Answer: The correct answer is the third option, (-3,-4).
Step-by-step explanation: You plug in 2x + 2 for y, given that y = 2x + 2.
2x+2 = x - 1
x = -3
Now, you plug in -3 for x in an equation.
y = -3 - 1
y = -4.
(-3, -4)
17 = 5 · 3 + 2
26 = 8 · 3 + 2
35 = 11 · 3 + 2
47 = 15 · 3 + 2
therefore
y = 3x + 2
Answer:
3y - 5 + 2y = 7
Step-by-step explanation:
Subtracting 5 from the second equation gives ...
x = 3y -5
Using the expression on the right for x in the first equation gives ...
x + 2y = 7 . . . . . . . . first equation
(3y -5) +2y = 7 . . . . with expression substituted for x
3y - 5 + 2y = 7 . . . . with parentheses removed
7 x 6 x 4 would be 168. Then 6 x 4 x 6 is 144. If you add it up you would get 312 cubic centimeters. I divided the figure into two prisms and find the volune of each and add it together.