The inverse operation of addition is subtraction
Answer:
4/15 yards more
Step-by-step explanation:
3/5 - 1/3
5 and 3 have a common denominator of 15.
3/5 = 9/15 1/3 = 5/15
9/15 - 5/15 = 4/15
Answer:
10 teachers
Step-by-step explanation:
Looking at the data provided, we can conclude that for 1800 students, there are 90 teachers.
1:20
When more teachers arrive, it then becomes, for every 1800 students, there are 100 teachers.
1:18
10 more teachers have now joined the school.
What you will do is 6.75 times 4 and the answer you should get is 27
Answer:
D. 55°
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Geometry</u>
- All angles in a triangle add up to 180°
Step-by-step explanation:
<u>Step 1: Set Up Equation</u>
40° + (y + 30)° + y° = 180°
<u>Step 2: Solve for </u><em><u>y</u></em>
- Combine like terms: 2y° + 70° = 180°
- Isolate <em>y</em> term: 2y° = 110°
- Isolate <em>y</em>: y° = 55°
