Find an equation of variation in which y varies jointly as x and z and inversely as the product of w and p, where yequalsstartfraction 7 over 28 endfraction when xequals7, zequals4, wequals7, and pequals8.

To solve this problem you must apply the proccedure shown below:

1. You have that varies jointly as and and inversely as the product of and . Therefore, you can write the following equation, where is the constant of proportionality:

2. Now, you must solve for the constant of proportionality, as following:

3. Susbtiute values:

4. Substitute the value of the constant of proportionality into the equation:

The answer is:

what graph

step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %