Equation: 4x + x = 40
X is the number of shells Cameron collected
Answer: Mandy collected 32 Cameron collected 8
Answer:
2x+20+3x+10 = 180 (int. angles, parallel)
5x+30 = 180
5x=150
x=30
3.141592653
Also written as 22/7 as a fraction
A number is rational if it can be put into a fraction of two integers.
Since 0.87 can also be expressed as 87/100, it is rational
We can solve for x in by substituting 'y=15-5x' from the second one into the first equation, because in the second equation, y has no coefficient, which will make it easier to substitute.
