Answer:
The answer to your question is $21.0
Step-by-step explanation:
Data
Original price = $25
Discount = 20%
Taxes = 5%
Process
1.- Calculate the price with the discount
$25 ------------------- 100%
x ------------------- 20%
x = (20 x 25) / 100
x = 500 / 100
x = $5
Price after the discount = $25 - $5
= $20
2.- Calculate the price after taxes
$20 ---------------------- 100%
x ----------------------- 5%
x = (5 x 20) / 100
x = 100 / 100
x = $1
Final price = $20 + $1
= $21
Sure what is the question?
X^2 - 10x + 25 = 18. Send 18 to the other side. The equation becomes :
x^2 -10x + 7 = 0 Now solve for x, using the quadratic formula.
x = (-b +- /b^2 - 4ac)/2a
{+- (plus minus) /(square root) } Note: the square root is 4 the whole (b^2 - 4ac) from equation : x^2 -10x + 7 = 0 a=1, b= -10, c=7 Replace the values of a,b&c in the quadratic equation.
x = (10+-/((-10)^2 - (4*1*7))/2) = ( 10 + /72 )/2. [Simplify it on your own, here it seems to be pretty weird with these: +- and / as square root.] Well, at the end you should obtain x=(10 +- square root of 72) divided by 2
either: x = (10 + /72) divided by 2 = 9.24
or : x = ( 10 - /72) divided by 2 = 0.757
Pretty long explanation!!!!!!!
Answer:
<h2><em><u>No Solutions</u></em></h2>
Explanation:
2(x + 1) = 2x + 1
- Simplify both sides of the equation
2(x + 1) = 2x + 1
(2)(x) + (2)(1) = 2x + 1 [Distribute]
- Subtract 2x from both sides
2x + 2 − 2x = 2x + 1 − 2x
2 = 1
- Subtract 2 from both sides
2 − 2 = 1 − 2
0 = −1
<h2><u><em>This Is False, Therefore There Are No Solutions</em></u></h2>
- PNW