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Isactuallycarter99
28.08.2019 •
Mathematics
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 1800 dolls when $34,000 was spent on advertising and the price of a doll was set at $25. determine the number of dolls sold when the amount spent on advertising is increased to $42,000. round to the nearest whole number.
answer
a. 877 dolls
b. 710 dolls
c. 2,224 dolls
d. 1,800 dolls
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Ответ:
here we are told that
number of dolls sold varies directly with advertising costs
number of dolls varies inversely with price of a doll
so initially
1800 dolls sold when advertising costs were $ 34 000
and price of a doll was $ 25
next they increased the advertising costs to $ 42 000
as we know number of dolls sold varies directly with advertising costs
so here when the advertising costs increase the number of dolls sold too should increases as its directly proportional relationship
we arent told that the price of a doll is changed so there's no effect on the number of dolls sold due to changes in price of a doll
only effect on number of dolls sold is due to increase in advertising costs
increase in advertising cost leads to increase in number of dolls sold
from the given options, only in one option the number of dolls sold are more than 1800 dolls. option is C with 2224 dolls
therefore correct answer is C. 2224 dolls
Ответ:
Ответ:
Step-by-step explanation:
Total outcome is 10 and favorable outcome is 2 ⇒ the probability that the first number is a multiple of five is
= ![\frac{1}{5}](/tpl/images/1404/6251/2c7f0.png)
Total outcome is 9 and favorable outcome is 3 ⇒ the probability that the first number is a multiple of three is
if first draw was successful, and
if the first number was multiple of three.