The answer is F=ma
In this type of equation, By followng, the rules that learned through aljabar ,
ab = ab
-ab = -ab
putting two letter representations will equal to multiplying it.Beside this, Putting a dot between each the two-letter representations will also indicate multiplication.
The answer to that is x + x + 118 = 180
Still confused? I'll explain why:
A triangle all together equals 180 degrees, so if the other two angles equal each other then all you need to do is add them up on one side, subtract 180, and then divide the remainding number by 2 to get the answer for one of the identical angles.
Answer:
Car A: Initial Charge = 20
Car B: Initial Charge = 30
Car A: Rate = 5
Car B: Rate = 0
At 2 miles, their charges will be the same
Step-by-step explanation:
Given
<u>Car A</u>

per mile
<u>Car B</u>

Solving (a): The initial charge
First, we get the linear equation that represents both car's charges.
Represent number of miles with m.
So, the charges is:
<u>Car A</u>
<u></u>
<u></u>


Set m to 0 to get the initial charge:


and

<u>Car B:</u>
i.e. Rate is 0


So:
and 
Solving (b): When their charge wil be equal.
To do this, we set:





<em>At 2 miles, their charges will be equal</em>