Answer:
No mistake
Step-by-step explanation:
2x + y = 5
x - 2y = 10
y = 5 - 2x
x - 2(5 - 2x) = 10
x - 10 + 4x = 10
5x - 10 = 10
5x = 20
x = 4
2(4) + y = 5
y = -3
She made no mistake
You can check by plugging in x = 4 and y = -3 into the original equations . They fit exactly.
Answer:
Step-by-step explanation:
Events: 1,2,3,4,5,6
Odd number are numbers not divisible by 2
Odd number < 5 are 1 & 3
P(odd numbers <5)= 2/6
= 1/3
Answer:
umm I think I know hold on
Answer:
The area of a rectangle with a width of 5 inches, and a height of 2.5 inches, would have an area 12.5 inches!
Step-by-step explanation:
To find the area of a rectangle, simply multiply the width (W) by the length (L) to find the area (A) of the rectangle.
A = W x L
A = 5 inches x 2.5 inches
A = 12.5 inches
Hope this helps! :)
Answer:
f(x) - g(x) = 3x² - 3x + 8
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Distributive Property
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
f(x) = 3x² - x + 5
g(x) = 2x - 3
<u>Step 2: Find f(x) - g(x)</u>
- Substitute in function values: f(x) - g(x) = 3x² - x + 5 - (2x - 3)
- [Distributive Property] Distribute negative: f(x) - g(x) = 3x² - x + 5 - 2x + 3
- [Subtraction] Combine like terms (x): f(x) - g(x) = 3x² - 3x + 5 + 3
- [Addition] Combine like terms: f(x) - g(x) = 3x² - 3x + 8
