Question

Evaluate the expression when X equals three and Y equals negative one. Show your work. 5X plus 4Y over two

Answer 1

Answer:

11/2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Step-by-step explanation:

Step 1: Define

(5x + 4y)/2

x = 3

y = -1

Step 2: Evaluate

1. Substitute:                    (5(3) + 4(-1))/2
2. Multiply:                        (15 - 4)/2
3. Subtract:                       11/2

Answer 2

Answer:

$\frac{11}{2}$

Step-by-step explanation:

$\frac{5x+4y}{2}\\=\frac{5(3)+4(-1)}{2}\\=\frac{15-4}{2}\\=\frac{11}{2}$