Answer:
<u><em>7 hours 30 minutes and 0 Seconds</em></u>
Step-by-step explanation:
- <em>60 minutes in 1 hour</em>
- <em>7:30 - 3:00</em>
- <em>60 * 10 = 600 Seconds</em>
- <em>Plus the 30 minutes which converts to 20 seconds</em>
- <em>Change that into hours and minutes</em>
Answer:
One solution.
Step-by-step explanation:
3(x + 9) = 2x + 54
3x + 27 = 2x + 54
3x + 27 - 2x = 2x + 54 - 2x
x + 27 = 54
x + 27 - 27 = 54 - 27
x = 27
Answer:
See below.
Step-by-step explanation:






70 times .9 is 63 so 90 minus 63 is27 so it was $27