4x - 3y = -11
-7x - 8y = 6
We need to cancel out one of the variables so let's multiply the first equation by 8 and the second by 3 and aim to cancel y.
32x - 24y = -88
-21x - 24y = 18
Now we subtract,
53x = -106
x = -2
3y = 4x + 11 = 4(-2) + 11 = 3
y = 1
Answer: (x,y)=(-2,1)
Check:
4(-2) -3(1) = -8 - 3 = -11, good
-7(-2) - 8(1) = 14 - 8 = 6, good
Answer:
It means turning 180 degrees to the left
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
The degree of a monomial is the sum of all the exponents.
There are three variables.
There's a 1 with the x.
A 3 with the y.
And a 7 with the z.
Therefore, the degree is:
This is a eleventh degree monomial.
The degree is 11.
And we're done!
Answer:
12 hours
Step-by-step explanation:
Find 20% of 15 hours
15 * 20%
15 * .2
3
Subtract this because his hours are cut
15-3
12
There were 4 terms in that expression