Xand y vary inversely and x=50 when y=5 find y when x=10 what is k?

x and y vary directly and x=6 when y=42 find k what is y when x=12

Part A)

1)  

2)

Part B)

1)  

2)

Step-by-step explanation:

Part 1) x and y vary inversely and x=50 when y=5 find y when x=10 what is k?

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form or

step 1

Find the value of k

x=50 when y=5

substitute the values

------> ----->

The equation is equal to

 or

step 2

Find y when x=10

substitute the value of x in the equation and solve for y

Part B) x and y vary directly and x=6 when y=42 find k what is y when x=12

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form or

step 1

Find the value of k

x=6 when y=42

substitute the values

------> ----->

The equation is equal to

 or  

step 2

Find y when x=12

substitute the value of x in the equation and solve for y

last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.