Answer:
Step-by-step explanation:
you could create an equation which would be 288= 90 + 20(x)
x = the amount of days needed
answer would be 10 days
1 yard = 3 feet
1 mile = 5,280 feet
So, 1 mile = 5,280/3 yards = 1760 yards
Answer:
All real numbers
Step-by-step explanation:
Since 0 does equal 0, and value would be able to work. So any x-value will work. Infinite values for <em>x</em>, resulting in all real numbers.
Answer:
No solution
Step-by-step explanation:
Note how "2x" shows up in both equations. This suggests doing a substitution to solve the system.
Focus first on the first equation. Solving 2x - y = 7 for 2x, we get:
2x = y + 7.
Next, we substitute y + 7 for 2x in the second equation:
y = (y + 7) + 3.
Simplifying this produces:
0 = 10
This is not true and can never be true. Thus, this system has no solution.
