Answer:
165km ----> 3 hrs
1km --------> (3/165) hrs
440km --------> [(3/165)*440]hr
Answer: 8 hrs
Answer:
c
Step-by-step explanation:
the both have the same gradient if 5/3, therefore they are parallel.
Answer:
2, 4
Step-by-step explanation:
X, Y
5, 2
X is like the floor, Y is like the wall
X: Positive is Right, Negative is left, So you Subtract if you're going left and Add if going right. Aka: 5-3
Y : Positive is Up, Negative is Down. So you Add since you're moving up. Aka: 2+2.
Answer: -1
Step-by-step explanation:
Answer:
x = 3
y = -2
Step-by-step explanation:
x + 2y = -1
2x – 3y =12
Using substitution means that in one equation you solve for a variable. In this case, the first equation would be easier to solve for x since there are no coefficients.
x = -2y - 1
Now, we plug in the value of x into the second equation, and solve for y.
2 (-2y - 1) - 3y = 12
-4y - 2 - 3y = 12
-7y - 2 = 12
-7y = 14
y = -2
Since we have a numerical value of y, we can use it to solve for x by plugging it into one of the original equations.
x + 2(-2) = -1
x - 4 = - 1
x = 3
If you'd like to check the answer, plug in both values you got to the original equations!
I hope this helps!