Answer: 7
Step-by-step explanation: 5 + 1 + 1 = 7 .
Answer:
20$
Step-by-step explanation:
100-80=20
You have to make the mixed number into a fraction in order to divide
If the perimeter is 80, the length plus the width is 80/2=40, so the length is 40-4=36 cm.
Answer:
-21/10
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
-2/5 - 4/5 + (-9/10)
<u>Step 2: Evaluate</u>
- Subtract: -6/5 + (-9/10)
- Rewrite: -6/5 - 9/10
- Subtract: -21/10