4(20 + x)
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Answer:
Step-by-step explanation:
Your b is -1 and your mx I don’t know how to figure that out but I helped with your variable b
The equation with 15 will be y = 15x.
<h3>What is an equation?</h3>
The equation is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line. The equation of a line in a general form can be written as below:-
y = mx + c
Where m is the slope and c is the y-intercept. The equation for the constant of proportionality 15 can be written as below:-
y = 15x
Here, y and x are variables and 15 is the constant value and is defined as the slope of the line.
Therefore, the equation with 15 will be y = 15x.
To know more about an equation follow
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Answer:
14 gallons of a gas more will she need to travel 240 miles.
Step-by-step explanation:
Proportion states that the two fractions or ratios are equal.
Let x represents the more gallons will she need to travel 240 miles.
As per the statement:
12 gallons of gas to travel 144 miles. Six gallons in the tank.
Then;
By definition of proportion:

Multiply 240 to both sides of an equation we have;

Simplify:

Subtract 6 from both sides we get;

Therefore, 14 gallons of a gas more will she need to travel 240 miles.