Lou spends the total amount would be $26.98 on gas which is determined by subtracting 13 gallons and 5.9 gallons and multiplying the result by $3.80.
Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
The following information is provided in the problem :
Lou topped up the tank with $3.80 per gallon of petrol.
Lou's car's 13-gallon tank held 5.9 gallons.
If he filled the tank, you can determine the total amount of money Lou spent by subtracting 13 gallons and 5.9 gallons and multiplying the result by $3.80.
So the total amount would be:
⇒ (13 - 5.9)(3.80)
⇒ (7.1)(3.80)
⇒ 26.98.
Therefore, the total amount would be $26.98
Learn more about Arithmetic operations here:
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We want to solve a system of linear equations, we will get that the solution is (8, -22)
A system of equations is a group of equations that we must solve simultaneously.
Here we have two lines defined by tables:
line 1:
x y
-4 26
-2 18
0 10
2 2
line 2:
x y
-4 14
-2 8
0 2
2 -4
Remember that a line is written as:
y = a*x + b
Where a is the slope and b is the y-intercept.
We know that if a line passes through the points (x₁, y₁) and (x₂, y₂), then the slope can be computed as:
With this we can find the slope of the first line, using any pair of the given points, I will use (0, 10) and (2, 2)
And we know that the line passes through (0, 10), then the y-intercept is equal to 10.
y = -4*x + 10
For line 2 we can use the points (0, 2) and (2, - 4), so we get:
And the y-intercept is y = 2, then the line is:
y = -3*x + 2
Now we must solve:
-4*x + 10 = -3*x + 2
10 - 2 = 4x - 3x
8 = x
Now we evaluate x = 8 in any of the two lines:
y = -3*8 + 2 = -22
Then the solution of the system is (8, -22)
If you want to learn more, you can read:
Answer:
(8,-22)
Step-by-step explanation:
i just took the test and checked
I do not know
mabey 6.5 every km
15 points
Welcome to Brainly.
To start out the problem, remove the parentheses.
Answer:
-2a-10b-3
Step-by-step explanation: