Answer:
Step-by-step explanation:
Let 
and 
be two rational numbers, where b and d are not zero and a, b, c and d are integers.
1. Given:
2. Multiply to get a common denominator :
3. Simplify:
4. Since 
then 
If 
are integers, then 
are integers too. So the fraction
is a rational number
OH DONT COPY THIS M8
THIS IS WRONG
If we use the width as x we have 2x with both widths and 4x with both lengths. So 6x=24 and x=4. So length is 8 and width is 4.
Answer:
Sedan: 4 passengers
Minivan: 6 passengers
Step-by-step explanation:
We can write the following system of equations:
, where 
represents the number of people a sedan can seat and 
represents the number of people a minivan can seat.
Subtracting the first equation from the second, we have:
Now plug in 
in any of the equations to solve for :
Verify that the solution pair 
works:
Therefore, a sedan can hold 4 passengers and a minivan can hold 6 passengers.
#6
D. 3.0 x 10^8
#7
A. y = 3.5x + 7
#8
B. 5
