Answer:
x = -4
Step-by-step explanation:
-3x = 2x + 20
-2x -2x
-5x = 20
÷ -5 ÷ -5
x = -4
To solve, just invert the equation so 27.75+x=30 becomes x=30-27.75=2.25, making your answer $2.25.
Answer:
12.42 -(-4.8) = 17.22
Step-by-step explanation:
1. The most important thing to note is the double negative signs, separated by the paranthesis. When 2 signs, numbers, variable, etc... are separated by a ( ) or simply beside each other, such as 2x or 4(6), you would multiply the 2 numbers.
2. In this equation, note that the negative sign is directly beside the (4.8):
(-)(-4.8) This means that you would multiply the negative sign or -1 by the -4,8. Remember multiplication rules with signs: a negative (-) number x a negative (-) number = a POSITIVE number.
3. Therefore, (-)(-4.8) is looking at the problem as (-) x (-4.8) = +4.8.
4. Note that at this point, the equation becomes an addition problem:
12.42 + 4.8 = x
5. Use your calculator to solve or the CORRECT way of simply lining up the decimals, and, there's your answer:
12.42 + 4.8 = 17.22
3 gallons x 4 qt/gallon = 12 quarts total.
He used 9, so he has 12 qt. - 9 qt. remaining.
3 Quarts remain.
A function assigns values. The difference between the maximum value of g(x) and the minimum value of f(x) is 18.
<h3>What is a Function?</h3>
A function assigns the value of each element of one set to the other specific element of another set.
Since the maximum of the parabola function g(x) will lie at its vertex, therefore, the maximum will be at (3,12). Now, if we try to find the minimum of the function f(x). We need to plot the function on the graph as shown below.
As the minimum of the function f(x) will lie at the vertex of the parabola function, therefore the minimum of the function f(x) will lie at (3,-6).
If we try to find the difference between the maximum value of g(x) and the minimum value of f(x), then we will get,
Thus, the difference between the maximum value of g(x) and the minimum value of f(x) is 18.
Learn more about Function:
brainly.com/question/5245372