D.perpendicular cross section of a pyramid cone
Answer:
Step-by-step explanation:
xy = k
where k is the constant of variation.
We can also express the relationship between x and y as:
y =
where k is the constant of variation.
Since k is constant, we can find k given any point by multiplying the x-coordinate by the y-coordinate. For example, if y varies inversely as x, and x = 5 when y = 2, then the constant of variation is k = xy = 5(2) = 10. Thus, the equation describing this inverse variation is xy = 10 or y = .
Example 1: If y varies inversely as x, and y = 6 when x = , write an equation describing this inverse variation.
k = (6) = 8
xy = 8 or y =
Example 2: If y varies inversely as x, and the constant of variation is k = , what is y when x = 10?
xy =
10y =
y = × = × =
k is constant. Thus, given any two points (x1, y1) and (x2, y2) which satisfy the inverse variation, x1y1 = k and x2y2 = k. Consequently, x1y1 = x2y2 for any two points that satisfy the inverse variation.
Example 3: If y varies inversely as x, and y = 10 when x = 6, then what is y when x = 15?
x1y1 = x2y2
6(10) = 15y
60 = 15y
y = 4
Thus, when x = 6, y = 4.
2nd answer choice
constant of variation is xy. XY=23. If X=7 then Y=23/7.
Answer:
Step-by-step explanation:
Each bag of popcorn costs $8
Each pretzel costs $3.25.
- The total cost of b bags of popcorn =$8*b=$8b
- The total cost of p pretzels purchased =$3.25*p=$3.25p
Skylar has a total of $80 to spend on both items. This means that she can either spend less than or exactly $80.
i.e Total Cost 
Skylar's Total cost on popcorns and pretzels =8b+3.25p
Therefore:
Therefore, an inequality that would represent the possible values for the number of bags of popcorn purchased, b, and the number of pretzels purchased, p will be:
Answer: it would take off would be $1.39 so you would subtract $6.95-$1.39 would be $5.56
Step-by-step explanation:
