Answer:
d = 0.33
Step-by-step explanation:
First off, you want to get like terms next to each other. We'll move the numbers with variables on one side and normal numbers on the other. Since we're changing the sides of the equal sign they're on, this also changes whether their positive or negative.
d - d - 2d + 3d = 10 -7 + 8 - 10
Now that they're together, we can add or subtract them. The variables without numbers can be ones for this equation.
3d = 1
Now we divide 1 by 3 to find what d equals.
3d/3 = 1/3
d = 0.33
Answer:
180’ - 130’
Step-by-step explanation:
Answer:
The class width is 
Step-by-step explanation:
From the question we are told that
The upper class limits is 
The lower class limits is 
The number of classes is 
The class width is mathematically represented as
substituting values
Since
Slope = (y2 - y1)/(x2 - x1) = (10 - 4)/(-6 - 3) = 6/-9 = -2/3
