Answer:
19.2 in
Step-by-step explanation:
Set up a proportion to solve this...
4 inches is to 25 miles as x inches is to 120 miles
4/25 = x/120 now cross multiply to and solve for x
480 = 25x
480/25 = x
19.2 = x
Answer:
All real numbers
Step-by-step explanation:
There is 3 possible solutions to a linear equation:
- One solution -a unique x value that makes the equation true
- No solution - a false statement is given after solving without a value for x
- Infinite solution - a true statement is given after solving without a value for x
Solve using inverse operations:
4(a+2)=14-2(3-2a)
4a+8=14-6+4a
4a-4a+8=8+4a-4a
8=8
Is 8=8? Yes. Therefore this is a true statement with no value for x. Infinite solutions or all real numbers.
24 * 2.25 = 54 boxes total
54*8 =432 crayons total
Here is an example:
3(4x +7)
2( 3 +5) =2( 3 ) = 2 ( 5 )
