For a geometric sequence or geometric series, the common ratio is the ratio of a term to the previous term. This ratio is usually indicated by the variable r. Example: The geometric series 3, 6, 12, 24, 48, . . . has common ratio r = 2.
Slope is the steepness of a line as it moves from LEFT to RIGHT. Slope is the ratio of the rise, the vertical change, to the run, the horizontal change of a line. The slope of a line is always constant (it never changes) no matter what 2 points on the line you choose.
Let n be unknown number, then 1/5 of this number is 1/5n. When you add these two numbers, you get
You know that this sum is equal to 24, so
1. Multiply this equation by 5:
2. Solve it:
Answer: n=20, correct choice is B.
Answer:
6, 8 and 10
Step-by-step explanation:
2x+3(x+4)=42
5x+12=42
5x=30
x=6
The numbers are 6, 8 and 10.
Answer:
y= -2/3x - 2
Step-by-step explanation:
So, the easiest thing to find first is your y-intercept, or the point in which the line crosses the y-axis. In this graph, the y intercept would be -2. Now, we can find the slope. One way to find the slope is to start at a point and count the numbers it rises and then the number it runs. Or, you can choose two points, like (0,-2) and (3,-4) and use the formula for slope, (y2-y1) / (x2-x1). Plug those numbers in and get (-4 minus -2)/ (3 minus 0), which would give you -2/3.
