Answer:
second answer should be corr3ect tell em if wrong
Step-by-step explanation:
Answer:
(2, -1)
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
- Subtract Property of Equality
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
2x + y = 3
-2x + 5y = -9
<u>Step 2: Solve for </u><em><u>y</u></em>
<em>Elimination</em>
- Combine equations: 6y = -6
- Divide 6 on both sides: y = -1
<u>Step 3: Solve for </u><em><u>x</u></em>
- Define equation: 2x + y = 3
- Substitute in <em>y</em>: 2x - 1 = 3
- Isolate <em>y</em> term: 2x = 4
- Isolate <em>y</em>: x = 2
Answer:
30
Step-by-step explanation:
20% is equal to .20
150 x .20 = 30
Answer:
yes
Step-by-step explanation:
they start from the same place so ya, that is proportional
Answer:
32+q
Step-by-step explanation:
<u><em>The complete question is</em></u>
Jake has 32 quarters on his desk, molly has q quarters in her purse.
Which algebraic expression represents the total number of quarters that Jake and Molly have?
we know that
To find out the total number of quarters that Jake and Molly have, sum the amount of quarters that Jake has plus the amount of quarters that Molly has
Let
x ----> the amount of quarters that Jake has
y ----> he amount of quarters that Molly has
so
x+y
we have
substitute
32+q
