Complete question :
You have 20 quarters. You find 40% more quarters in your room. Then you go shopping and spend 50% of the total number of quarters.
A. Write an expression that represents the total number of quarters you take with you when you go shopping.
B. How much money do you have left?
Answer:
[20 + (0.4*20)] = 28 quarters
$3.5
Step-by-step explanation:
Given that:
Initial number of quarters = 20
Quarters in room = 40%
Hence, Numbe of quarters in room = 0.4 * 20 = 8
Total number of quarters taken for shopping :
(Initial amount + Numbe of quarters in room)
(20 + 8) = 28 quarters
50% of quarters was spent on shopping :
0.5 * 28 = 14 quarters
Total left :
28 - 14 = 14
Quarters left in dollars :
1 quarter = 25 cent = 0.25 dollars
14 * $0.25 = $3.5
Answer:
(-5, -20)
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
<u>Algebra I</u>
- Coordinates (x, y)
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define</u>
y = x - 15
y = 4x
<u>Step 2: Solve for </u><em><u>x</u></em>
<em>Substitution</em>
- Substitute in <em>y</em>: 4x = x - 15
- [Subtraction Property of Equality] Subtract <em>x</em> on both sides: 3x = -15
- [Division Property of Equality] Divide 3 on both sides: x = -5
<u>Step 3: Solve for </u><em><u>y</u></em>
- Define original equation: y = 4x
- Substitute in <em>x</em>: y = 4(-5)
- Multiply: y = -20
Multiples of 13 from 1-50 : 13 , 26 , 39
total number from 1-50 : 50
no. of employees who is not a multiple of 13 : 50-3= 47
Probability = 47/50
I’m not sure if this is correct :( I tried hahaha
Answer:
a. x=1.8?
Step-by-step explanation:
im not really sure but i need help also. Im sorry but i just thought to say something.
