When Megan solved this system using the elimination method , she added the equations together and got the equation 4y = 16. Then
1 answer:
Answer:
Megan added the equations together but she subtract 4 instead of addition of 4. The correct solution is (1,6).
Step-by-step explanation:
The given equations are
...(1)
.... (2)
Add both equations to eliminate x.
Megan make a mistake in this step. She added the equations together but she subtract 4 instead of addition of 4.
Divide both sides by 4.
Put this value in equation (1).
Divide both sides by 2.
Therefore the correct solution is (1,6).
You might be interested in
Answer:
x2 = 60
Step-by-step explanation:
If the variables x and y are inversely proportional, the product x * y is a constant.
So using x1 and y1 we can find the value of this constant:
Now, we can use the same constant to find x2:
So the value of x2 is 60.
Step-by-step explanation:
The formula for arc length [for the angle in degrees] is:
here,
= degrees
= radius
using this we'll solve all the parts:
r = 10, n = 20:
from here, it is just simplification:
2 and 360 can be resolved: 360 divided by 2 = 180
10 and 180 can be resolved: 180 divided by 10 = 18
finally, both 20 and 18 are multiples of 2 and can be resolved:
Option (E)
r=3, n=6:
Option (D)
r=4 n=7
Option (C)
r=2 n=x
Option (D)
r=y n=x
Option (E)