Saturday

October 25, 2014

October 25, 2014

Posted by **Rachel** on Tuesday, August 10, 2010 at 10:13pm.

- algebra -
**jai**, Tuesday, August 10, 2010 at 10:33pmfirst, represent them as variables:

let x = four-passenger cars

let y = six-passenger cars

set up the equations [since two unknowns, you must have two equations]:

(1) 4x+6y=92 ==> since 92 people altogether

(2) y=x-3 ==> since three less six-passenger cars

then you can substitute the equation (2) to (1):

4x+6(x-3)=92

4x+6x-18=92

10x=110

x=11 four-passenger cars

i hope i was able to help.. =)

**Answer this Question**

**Related Questions**

Algebra - The Big Screamer Coaster carries 92 people altogether. Some of its ...

Math - I need help on how to work the problem below. The teacher said the answer...

algebra 1 - The rocket coaster has 15 cars, some that hold 4 people and some ...

math - The owner of a luxury motor yacht that sails among the 4000 Greek islands...

statistics - the subway train has 18 doors and starts with 15 passenger. if each...

Math - The hourly operating cost of an airplane, which seats up to 405 ...

Math - The hourly operating cost of an airplane, which seats up to 405 ...

math - If exactly 198 people sign up for a charter flight, Leisure World Travel ...

math - If exactly 198 people sign up for a charter flight, Leisure World Travel ...

Math - If exactly 198 people sign up for a charter flight, Leisure World Travel ...