ebarlow2004ou2mg8 ebarlow2004ou2mg8
  • 02-08-2017
  • Mathematics
contestada

Jim has three times as many comic books as Charles. Charles has 2/3 as many books as Bob. Bob has 27 books. How many comic books does Jim have?

Respuesta :

irspow
irspow irspow
  • 02-08-2017
j=3c, c=2b/3, b=27 so

j=3(2b)/3

j=2b, since b=27

j=2(27)

j=54  

So Jim has 54 comic books.

Answer Link
AwesomeMochi
AwesomeMochi AwesomeMochi
  • 02-08-2017
To solve: Work backwards.

A number is given for Bob: 27
We can make equations according to the relations between the three people to find how many books Jim has.

Bob: 27
Charles: 2/3(Bob's value)
Joe: 3(Charle's value)

Solve for Charles first: 2/3(27)= 18 books

Then solve for Joe: 3(18)=54

Answer: Joe has 54 books.
Answer Link

Otras preguntas

sammy and david were selling water bottles to raise money for new football uniforms. sammy sold 5 water bottlea for every 3 water bottles david sold. together t
What are equivalent expressions for 64x+80
At what points do the roles of the architect and the engineer intersect? (Select all that apply.) staying within constraints of budget and cost. managing the c
Cows can derive nutrients from cellulose because?
which of the following was not an original category of early radio broadcasts? A)comedy programs B)drama programs C)music programs D)news programs
Coal is derived from which of the following materials?
Which of the following is an example of chronological thinking
2/5, 0.35, 0.3 which number is more
I need help on numbers 18, 20, and 24.
Mrs. Johnson spent $611 buying lunch for 78 students. If all the lunches were the same cost, about how much did she spend on each lunch?