It will take 3 workers to paint the same house in 4 hours.
Answer:
The answer is A
Step-by-step explanation:
-3/8 divided by -1/4 = -1.5 (in fraction form it is -1 1/2)
To solve a problem like this, you will need to use substitution or elimination. For the sake of an example I will solve this using substitution.
First, solve one of the equations for x or y:
3x-5y=-39
3x=-39+5y
X=(-39+5y)/3
Then substitute for the value of x in the second equation:
6x+2y=-42
6((-39+5y)/3)+2y=-42
Solve for y:
-78+10y +2y=-42
-78+12y=-42
12y=36
Y=3
Once you've solved for y, you can plug in it's value to find x:
X=-39+5(3)/3
X=-24/3
X=-8
So, we can conclude that the correct answer is B. (-8,3)
Recall that
Angle is acute, which means its measure is between 0 and 90 degrees. For , we have , so we should take the positive root. Then
Answer:
To the left of the zero.
Step-by-step explanation:
Negative numbers are always on the left side of the zero on a number line.