EXPLANATION: (2x6)-10)+2(4x13+(12-20)
ANSWER: (20x14)=280 thats what i got lmk if its incorrect
Answer:
x = 1/4
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
4x - 5y = 21
<em>y</em> = -4
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute in <em>y</em>: 4x - 5(-4) = 21
- Multiply: 4x + 20 = 21
- [Subtraction Property of Equality] Subtract 20 on both sides: 4x = 1
- [Division Property of Equality] Divide 4 on both sides: x = 1/4
Step-by-step explanation:
for each hour she works , her earnings go up by $10
The first one is the correct answer, because the slope of the line is
$(60-0)/(6.0 hours)
= 60/6 $/hour
=10 $/hour.
Answer:
65°
Step-by-step explanation:
Answer:
David's bowling score is 100 and Aarons is 115
Step-by-step explanation: