Question

Designer Dolls, Inc. found that the number N of dolls sold varies directly with their advertising budget A and inversely with the price P of each doll. The company sold 5200 dolls when $26,000 was spent on advertising and the price of a doll was set at $30. Determine the number of dolls sold when the amount spent on advertising is increased to $52,000. Round to the nearest whole number.

A. 5,200 dolls

B. 1,723 dolls

C. 3,447 dolls

D. 10,400 dolls

Answer 1

Are you going to Ashworth?

Answer 2

yes, my last class

Answer 3

part 1 or 2

Answer 4

N = Number of dolls.. A = Advertisement , P = Price..
N directly A and N inversely to P
\[N \alpha (A/P) ... = N = K(A/P)\]
where K = constant of proportionality..

case 1: N = 5200, A = 26,000$ and P = 30$

N = K (A/P)
5200 = K (26000/30)
K = 6..

Now, part 2,

calculate N , when K = 6, p = 30 & A = 52000

so N = K (A/P)
N = 6 (52000/30)

N = 10400...

option D...

Answer 5

@Ganpat are you sure it's D????

Answer 6

yup... calculation says so.. :)

whats ur opinion on my approach ?? :D

Answer 7

idk i'm horrible at math D: But we'll see when I turn my exam in!

Answer 8

The answer is D

Answer 9

thats bad.. From next time, we will practice maths before exams..

All the Best.. and m 100% sure :)

Answer 10

thank you!

Answer 11

W/c :)

Answer 12

you were right btw(:

Answer 13

so was i 100% sure.. so how much u scored ?