The percent discount is: 20%
Step-by-step explanation:
The formula for percentage will be used to find the percentage of discount.
Given
Original price = $160.95
Discounted price = $128.44
The discount is:
D = Original price - sale price

The percent discount is given by:

Rounding off to nearest whole percent
20%
Hence,
The percent discount is: 20%
Keywords: Percentage, discount
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Answer:
-12u + 11z
Step-by-step explanation:
The above expression cannot be simplified, for:
1) There is no common variable (one being <em>u</em>, and the other being <em>z</em>).
2) There are no common factors in between 12 & 11)
- Factors of 12: 1, 2, 3, 4, 6, 12
- Factors of 11: 1, 11
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Question 6
first multiply the numerator and
denominator by 9+(2)^1/2
Question 7
The perimeter is equal to 2(width) + 2(length). let's call the width w and the length L.
so 32 = 2w + 2L
the width is given as 2 meters less than the length, so w = L - 2
32 = 2(L - 2) + 2L
32 = 2L - 4 + 2L
32 = 4L - 4
36 = 4L
9 = L
so our length is 9 meters.
w = L - 2
w = 9 - 2
w = 7
so our width is 7 meters.
The negative solution is x = –1.
Solution:
Let the number be x.
Square of a number = x²
3 times a number = 3x
Difference of square of a number and 4 = 3 times that number

Subtract 3x from both sides of the equation, we get

–3x can be written as x – 4x.


1st bracket have common term x and bracket have –4 common term.

Take common term x + 1 outside.

<em>By zero factor principle, if AB = 0 then A = 0 or B = 0.</em>
x + 1 = 0, x – 4 = 0
x = –1, x = 4
The negative solution is x = –1.