Answer:
x+y+z=15
x+2y+5z=15
-x+y+z=1
Step-by-step explanation:
$8.00 is how much you will save
Answer:
No, it is not an example of random sampling.
Step-by-step explanation:
Tucker, would have to got to different places around his state/area where he lives. He would have to question more.
Answer:
S = x + 10
R = 2x + 10
Step-by-step explanation:
If R is Roberto's age, and S is his sister's age, then:
R = S + x
R − 10 = 2 (S − 10)
Solve with substitution.
S + x − 10 = 2 (S − 10)
S + x − 10 = 2S − 20
S = x + 10
R = 2x + 10
Your answer is -37. (work from left to right)
