The cost of purchasing a bag of rice is partly constant and partly varies inversely as the square root of the number of people demanding the bag. when the cost was 100 naira the number of people were 36 when the cost was 150 naira the number of people were 144. Find 1. The cost when the number of people were 225.
The number of people when the cost was 200 naira

(a) 160 Naira

(b) Undefined

Step-by-step explanation:

Given

Let:

cost of bag of rice

people demanding the bag

So, we have:

---- The variation

We have:

When:

-- (1)

When:

--- (2)

Subtract (1) from (2)

Multiply through by 12

To solve for x, we have:

-- (1)

This gives:

So, the equation is:

Solving (1): y; when x = 225

We have:

Solving (2): x; when x = 200

We have:

Collect like terms

Cross multiply

x is undefined

the answer is 24

step-by-step explanation:

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.