Answer:
after 1.25 hours
Step-by-step explanation:
1. make 130 your y value
130 = 220 - 72x
2. subtract 220 from both sides
-90 = -72x
3. divide by -72 on both sides
1.25 = x
Answer:
60
Step-by-step explanation:
Plug it into the calculator
First you must find the tenths place
7 .8 3 9
O T H Th
So, the 8 is in the tenths place. Now look at the number to it's right, 3.
Since 3 is less than 5, you just turn everything behind the 8, including the 3, into a zero, giving you 7.800 or 7.8
The answer is 7/1 which is just 7