Quick sell outlet sold a total of 40 televisions, each of which was either a model p television or a model q television. each model p television sold for $p and each model q television sold for $q. the average (arithmetic mean) selling price of the 40 televisions was $141. how many of the 40 televisions were model p televisions?

Step-by-step explanation:

Here, the total number of television = 40,

Let x be the number of P television,

So, the number of Q television = (40 - x)

Now, the price of each P television is $ p,

∴ The total price of P televisions = xp dollars,

Also, the price of each Q television is $ q,

∴ The total price of Q televisions = (40-x)q dollars,

Thus, the total price of 40 television = xp + (40-x)q = x(p-q) + 40q,

Hence, the average price =

According to the question,

Therefore, there were P model televisions.

c

step-by-step explanation:

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !