Answer:
14. x=30, y=15, z=165
15. x=10, y=25
Step-by-step explanation:
2x^2+11x-15 Is the answer to 7
Step-by-step explanation:
Find the median for the data set: 3,12,35,12,9,6,3,3,3,3,9,3
elena-s [515]
I’m pretty sure the answer is 6
Answer:
x = 1, y = 10
Step-by-step explanation:
y = -5x + 15 --- Equation 1
2x + y = 12 --- Equation 2
Substitute y = -5x + 15 into Equation 2:
2x + y = 12
2x - 5x + 15 = 12
Evaluate like terms.
15 - 3x = 12
Isolate -3x.
-3x = 12 - 15
Evaluate like terms.
-3x = -3
Find x.
x = -3 ÷ -3
x = 1
Substitute x = 1 into Equation 2:
2x + y = 12
2(1) + y = 12
2 + y = 12
Isolate y.
y = 12 - 2
y = 10
Yes, they certainly do exist.
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