F(x) is the function that represents a given equation. It is defined more specifically by rules or conditions to satisfy the whole formula/equation.
In this case, f(x) has an inverse proportion with x (e.g. f(x) = 1/x). The second parameter says that f(x) = -15 when x is 30. Given that condition, just look for the formula, among the choices, that will result to -15 when x = 30. The answer is:
D. f(x) = -450/x
This is just -450/30 = -15
Answer:
88
Step-by-step explanation:
First find the lbs per serving for the 25 servings. We do that by dividing 6 pounds by 25 serving. 6/25 = .24 lbs per serving. Now we need to times .24 by 30 to find out how many pounds of ground beef for 30 servings.
.24 times 30 = 7.2 lbs for 30 servings
Answer:
slope: 1; y-intercept: 3
Step-by-step explanation:
The y-intercept is the y-value where the graph crosses the vertical y-axis. That value is 3.
The slope is the "rise" divided by the "run" for the graph. Here, the graph goes up 1 unit for each unit to the right, so the slope is ...
m = rise/run = 1/1 = 1
The slope is 1, and the y-intercept is 3.
Percent of students brought their lunch from home is 100-24= 76%
So, total students are in the six grade is
190 x 100/76 = 250 students