Dominic is driving on a long road trip. He currently has 10 gallons of gas in his car. Each hour that he drives, his car uses up
1.25 gallons of gas. Write an equation to represent the scenario. How much gas will Dominic have in 3 hours?
1 answer:
Answer:
(a) Equation: 
(b) 7.5 gallons
Step-by-step explanation:
Given
Current Gas = 10 gallon
Every Hour = -1.25 gallon
Solving for (a): An equation for the scenario
This question represents an Arithmetic Progression and will be solved using the following formula:

Where


Substitute these values in the formula


Collect Like Terms


Solving for (b): In this case, n - 3
Substitute 3 for n in 



<em>7.5 gallon of gas left</em>
You might be interested in
2x+79+32=180
2x+111=180
2x=69
x=34.5
You take the exponent and move that many places with the number that you get on the opposite side
Hola, necesita ayuda con translation?
La señora esta caminando en la calle y Saludo a todos.
The woman is walking in the street and greets everyone.
F(x)= (x+13)(x-2) in expanded form, it would be x^2+11x-26
Answer:
5x3-6x2-4x+7...(a)
Step-by-step explanation:
(5x3-12x+4)+ (6x2-4x+3)
15-12x+4+12-4x+3
5x3-6x2-4x+7