Answer:
2
Step-by-step explanation:
I think :)
Answer:
(7, 1)
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define systems</u>
x = 2y + 5
x/3 - y = 4/3
<u>Step 2: Solve for </u><em><u>y</u></em>
- Substitute: (2y + 5)/3 - y = 4/3
- Multiply 3 on both sides: 2y + 5 - 3y = 4
- Combine like terms: -y + 5 = 4
- Isolate <em>y</em> term: -y = -1
- Isolate <em>y</em>: y = 1
<u>Step 3: Solve for </u><em><u>x</u></em>
- Define: x = 2y + 5
- Substitute: x = 2(1) + 5
- Multiply: x = 2 + 5
- Add: x = 7
And we have our final answer!
Given:
The inequality is
To find:
The correct representations of the given inequality.
Solution:
We have,
Using distributive property, we get
Therefore, the correct option is C.
Isolate variable terms.
It means, the value of x is greater than 5.
Since 5 is not included in the solution set, therefore, there is an open circle at 5.
So, the graphical represents of the solution is a A number line from negative 3 to 3 in increments of 1. An open circle is at 5 and a bold line starts at 5 and is pointing to the right.
Therefore, the correct option is D.
If you would like to know what do the f(x) and x represent in Luke's situation, you can find this using the following step:
<span>f(x) = 7x + 15
</span>7 hours each week
x ... the number of weeks
f(x) ... the total number of hours Luke exercises
The correct result would be A) <span>f(x) represents the total number of hours; x represents the number of weeks he exercises this summer.</span>
Answer:
18
Step-by-step explanation:
unknown numbers?
