No, 2 3/4 hours = 165 minutes.
Answer:
20. Which of the following is the correct first step to solve 5x2 – 20x = -15 by completing the square?
O Divide all terms by 5. this is the answer
O Divide all terms by -5.
Add 15 to both sides.
Add 100 to both sides.
5%
Step-by-step explanation:
Answer:
(-3, -15)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
n = 5m
n = 2/3m - 13
<u>Step 2: Solve for </u><em><u>m</u></em>
<em>Substitution</em>
- Substitute in <em>n</em>: 5m = 2/3m - 13
- Subtract 2/3m on both sides: 13/3m = -13
- Divide 11/3 on both sides: m = -3
<u>Step 3: Solve for </u><em><u>n</u></em>
- Define equation: n = 5m
- Substitute in <em>m</em>: n = 5(-3)
- Multiply: n = -15
Answer:
AGREE!
Step-by-step explanation:
"I agree with Lin, she used the correct formula to get this answer"
Answer:
<u><em>In the first hour they sold 350 tickets and in the second hour they sold 20% more so first we have to find 20% of 350, 20/100 x 350 = 70, so 20% of 350 is 70 now in the second they sold 350 + 70 = 420 tickets now you have to add it so 350 + 420 = 770, there is a price of $17.50 per ticket so 770 x 17.50 = 13475.</em></u>
Step-by-step explanation: