Answer:
p = 11.2
Step-by-step explanation:
2.6(5.5p – 12.4) = 127.92,
5.5p - 12.4 = 49.2,
5.5p = 61.6,
p = 11.2
Answer: Jim is 8 years old
Step-by-step explanation: just add multiply by 2
Answer:
V = 125 cm³
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Geometry</u>
Volume of a Cube Formula: V = a³
- <em>a</em> is any side length
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify variables</em>
<em>a</em> = 5 cm
<u>Step 2: Find Volume</u>
- Substitute in variables [Volume of a Cube Formula]: V = (5 cm)³
- Evaluate exponents: V = 125 cm³
Hey there!!
Let's write $1.5 as 15 / 10
15/10 = 3/2
$3/2
October price = $3/2
Let's take September price as ' x '
If we take a look at the question, we know
October price = 20% of September + September price
20% = 20/100 = 1/5
Of = multiplication
Plug in the values
3/2 = x/5 + x
LCM = 5
3/2 = 6x / 5
Multiplying by 5 on both sides
15/2 = 6x
Dividing by 6 on both sides
15/2 / ( 6 ) = x
15/2 × 1/6 = x
15/12 = x
15/12 = $1.25
The price in September = $1.25
Hope my answer helps!
Answer:
<h3>x = -3 , x = 3</h3>
Step-by-step explanation:
7x² - 3 = 60
7x² - 3 - 60 = 0
7x² - 63 = 0
Simplify the terms
Divide both terms by 7
That's
x² - 9 = 0
Solve the quadratic equation
Use difference of two squares
That's
a² - b² = ( a + b)(a - b)
x² - 9 = 0
(x + 3)(x - 3) = 0
x + 3 = 0 x - 3 = 0
x = - 3 x = 3
Hope this helps you
