Answer:
4 ft.
Step-by-step explanation:
We can consider the orignial square's sides to be x, so area of the original figure: 
The new rectangle's sides will be x and x+8, so the area of the new figure will be x^2+8x.
We know that the new area is 3 times the old one. So our equation will be:
x^2+8x=3x^2
our answer will be x=4.
Therfore, the length of the side of the old flower bed is 4 ft.
Answer:
112
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
8 × (3v - 4)
v = 6
<u>Step 2: Evaluate</u>
- Substitute in <em>v</em>: 8 × (3 · 6 - 4)
- (Parenthesis) Multiply: 8 × (18 - 4)
- (Parenthesis) Subtract: 8 × 14
- Multiply: 112
Answer:
The new price is $28
Step-by-step explanation:
In order to find this, multiply the price of the fan by the markup.
$20 * 40% = $8
Now we can add the amount of the markup to the original cost.
$8 + $20 = $28
Step-by-step explanation:
p(y)=2+y+2y²-y³
p(0)=2+(0)+2(0)²-(0)³=2+0+0-0=2
p(1)=2+(1)+2(1)²-1³=2+1+2-1=4
p(2)=2+2+2(2)²-2³=4+8-8=4
<h3>HOPE IT HELPS YOU</h3>
IF the estimates are 100% accurate, then the maximum volume of concrete is the product of the maximum dimensions, namely
Vmax=18.32*12.22*0.55=123.13 m^3
and the minimum volume of concrete is the product of the minimum dimensions
Vmin=18.28*12.18*0.45=100.19 m^3
the uncertainty is therefore 123.13-100.19=22.94 m^3
On the practical side, to this uncertainty must be added to
- squareness of the formwork
- evenness of the surface of the crushed stones on which the foundation sits on
- excess of concrete delivered by the truck
- volume of air bubbles trapped in the the concrete, ...
