What does it mean for x and y to vary inversely?

1 answer:

8 0

1. The statement "y varies inversely as x means that when x increases, y decreases by the same factor. In other words, the expression xy is constant: xy = k.

2. increase

3. One type of variation is inverse variation, and two variables are said to vary inversely if when one increases the other decreases and vice versa. The formula we use to indicate that a variable, y, varies inversely with a variable, x, is y=kx y = k x , where k is a constant called the constant of variation.

You might be interested in

Solve for X. Please help! 35 points

Rufina [12.5K]

5x+3=6x-4
-x=-7
X=7
Hope this helps!

6 0

3 years ago

2 Solve the equation 3x +125 = 49

Alex787 [66]

Qustion:

3x +125 = 49

Answer:

x = - 25 1/3

8 0

3 years ago

Probability.

swat32

Answer: 0.0386

Step-by-step explanation:

Given: The probability hat the frozen chickens contain enough salmonella bacteria to cause illness if improperly cooked : p= 0.30

Sample size : n = 12

Let x = Number of contaminated chickens

Here , two outcomes for any chicken (either contaminated or not) , so it follows binomial distribution.

Binomial probability formula:

$P(X=x) = \ ^nC_x p^x(1-p)^{n-x}$

The probability that the consumer will have more than 6 contaminated chickens :-

$P(X>6)=P(X=7)+P(X=8)+P(X=9)+P(X=10)+P(X=11)+P(X=12)\\\\=^{12}C_6(0.3)^6(0.7)^6+^{12}C_7(0.3)^7(0.7)^5+^{12}C_8(0.3)^8(0.7)^4+^{12}C_9(0.3)^9(0.7)^3+^{12}C_{10}(0.3)^{10}(0.7)^2+^{12}C_{11}(0.3)^{11}(0.7)^1+^{12}C_0(0.3)^{12}(0.7)^0$