-10 and +3 would get you -7 and -30...
-10 and -3 would get you -13 and +30...
+10 and -3 would get you +7 and -30...
(x/7)-12=-2
Add 12 to both sides.
x/7=10
Multiply both sides by 7.
x=70
Final answer: 70
hope this helps :)
Answer:
The best option would be Number 1.
Step-by-step explanation:
Let's say that they each traveled 1,000 miles a week, meaning that instead of the SUV using 100 gallons of gas, it would be using 90.9, which is 9.1 gallons less.
The hybrid will only use 20 gallons of gas in that week. Meaning together, they will be 100.9 gallons a week for 1,000 miles.
In option 2, they would still be using 100 gallons of gas for the SUV a week, except, the hybrid would only be using 12.5 gallons, which is 7.5 gallons less.
The total of those together would be 112.5 gallons a week for 1,000 miles. So, it may be a small difference between the two options, yet Option 1 is the best choice on how to save gas.
80
117
169
180
448
817
=
1811 / 91
19.901 and that rounded to 2 decimal places is 19.9
