Answer:
x = -5
y = 2
Step-by-step explanation:
x = – 2y – 1
= -x - 2y - 1
-x - 2y = 1
x = – 5y + 5
= -x - 5y + 5
-x - 5y = -5
-x - 2y = 1
-x - 5y = -5
___________--
3y = 6
y = 6/3
<u>y = 2</u>
-x - 2y = 1
-x - 2(2) = 1
-x - 4 = 1
-x = 1 + 4
-x = 5
<u>x = -5</u>
Yes! Let me help you!
Here is the original equation, lets solve this step-by-step
(x + 2)/4 = 5
Now, lets find out how.
We must apply the inverse operation.
4/2 is the reciprocal, so lets multiply that to both sides.
4/2 = 2
5*4 = 20
4x + 8 = 20
-8 -8 Subtract 8 from both sides. (Inverse operation)
4x = 12
4x/4 = 12/4 Divide 4 by both sides (Inverse)
x = 12/4
x = 3 Simplified
Answer: x = 3
The two numbers are 10 and 1. When you add 10 and 1, it adds up to 11. When you multiply 10 by 1, the answer is 10.
Hope it helps :)
Answer:
The answer is b) 20.
Step-by-step explanation:
Pythagorean theorem: a²+b²=c²
Substitution: 12²+16²=x²
Simplify: 400=x², x=20
Answer: x = 400 MPH x+60 = 460 MPH
Step-by-step explanation:
(Distance = (Rate)(Time)
Let x = speed of the LA bound plane
Then, x+60 = speed of NYC bound plane
Sum of distances = 2464
3.4x + 2.4(x+60) = 2464
5.8x + 144 = 2464
5.8x = 2320
x = 400 MPH x+60 = 460 MPH
