SOLUTION: In a rec year, companies spent a total of $86.9 Billion on Newspaper, television and radio ads. The total amount spent on Tv and Radio ads was only $2.7 Billion more than the amoun

Question 839154: In a rec year, companies spent a total of $86.9 Billion on Newspaper, television and radio ads. The total amount spent on Tv and Radio ads was only $2.7 Billion more than the amount spent on newspaper ads alone. The amount spent on newspaper ads was $5.5 Billions more than what was spent on Tv ads. How much was spent on each form of advertising ? please help I am so lost on this one
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = amount in billions spent on newspaper ads
Let = amount in billions spent on TV ads
Let = amount in billions spent on radio ads
-------------------------------------
(1)
(2)
(3)
----------------------
There are 3 unknowns and 3 equations
so it is solvable
Substitute (2) into (1)
(1)
(1)
(1)
(1)
and
(3)
(3)
(3)
and
(1)
(1)
(1)
-------------------------
42.1 billion was spent on newspaper ads
36.6 billion was spent on TV ads
8.2 billion was spent on radio ads
check:
(2)
(2)
(2)
OK -you can check the other 2 equations

RELATED QUESTIONS
In 2008, U.S. companies spent a total of $118.2 billion on newspaper, television, and... (answered by stanbon)

In a recent year, companies spent a total of $87.6 billion on... (answered by stanbon)

A health insurance company advertises on television, on radio, and in the local... (answered by Theo)

2 equations in 2 variables - Solve by row reducing For the final days before the... (answered by richwmiller)

A company places a total of 450 advertisements using radio and television. The number of... (answered by Fombitz,Alan3354,rothauserc)

A soap manufacturer decides to spend 600000 rupees on radio, magazine and TV advertising. (answered by ikleyn)

Please help me in this question: A soap manufacturer decides to spend 600,000 rupees on (answered by CubeyThePenguin,ikleyn)

A soap manufacturer decides to spend 60000 rupees on radio, magazine and tv advertising.... (answered by stanbon)