Answer:
I do know that y = 3 and that x = -2, so any system that has that solution is correct.
Step-by-step explanation:
Multiplying the second equation by -2 and adding the equations will cancel out the x variable. The remaining equation is:
10y = 30. Therefore, y must be 3. Substituting y in for the first equation, we get:
6x + 6 = -6. That means x must be -2. I checked my work with the second equation:
-6 - 12 = -18.
The system results in a true statement, so the answer is y = 3 and x = -2.
Answer:
22π=2πr. Divide both sides by 2π so r=11. Area = πr^2=121π.
Step-by-step explanation:
Hi there! The answer is B.

Subtract 6r from both sides.

Divide both sides of the inequality by -1. Remember that dividing by a negative makes the sign flip.

Therefore, the solution must be bigger than or equal to 8. From the given solution set, the answer is B. {8, 9, 10}
~ Hope this helps you!
They get ten times smaller, so you could say a number is getting divided by ten or the decimal point is moving to the left one place value.
Answer:
Step-by-step explanation:
2y+4=10
we will subtract 4 from both sides
2y=10-4
2y=6
y=3