3x + 2y = 7
y = x - 4
3x + 2(x - 4) = 7
3x + 2x - 8 = 7
5x = 7 + 8
5x = 15
x = 15/5
x = 3
y = x - 4
y = (3) - 4
y = -1
the solution to the set is (3, -1)
hope this helps :)
Answer:
pounds, ounces, tons
Step-by-step explanation:
Answer:
The time period of a simple pendulum if it takes 72 seconds to complete 24 oscillation will be 3 seconds.
Step-by-step explanation:
Total number of oscillations = 24
Time taken to complete 24 oscillations = 2 seconds
So, the frequency 'f' of the simple pendulum will be:


Let 'T' be the time period.





Therefore, the time period of a simple pendulum if it takes 72 seconds to complete 24 oscillation will be 3 seconds.
Answer:
1 liter of water
Step-by-step explanation:
If 80 % is acid that's means 4 liters of the 5 is acid. (0.8 * 5)
The remaining amount is 1