Answer:
Well, there can be negative numbers added to their positive opposite.
Step-by-step explanation:
For example, -3 + 3 = 0
or you could 0 + 0 = 0
Answer:
The gallons of fuel car need to travel 30 km is <u>0.75</u> approximately .
Step-by-step explanation:
Given:
The car can travel 25 miles per gallon. (1 mile = 1.6 km)
Now, we need to convert 25 miles into km .
25 miles = 25 × 1.6 km
= 40 km
So, the car can travel 40 km per gallon.
Then, we find out in 1 km how many gallons are used:



Now, we find out how much gallons of fuel will the car need to travel 30 km:
Gallons of fuel the car need to travel 30 km = 
=
.
Therefore, the gallons of fuel car need to travel 30 km is 0.75 approximately.
Answer:

Step-by-step explanation:
Move the -4 over to the other side.

Divide both sides by 3.

Answer:
33beacuse you i have -90×+60=9×6=369-63