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Doss [256]
3 years ago
10

Solve for x 1/2x = 20

Mathematics
2 answers:
shusha [124]3 years ago
7 0
This is 2EZ for me, the answer for x is 40. X=40
evablogger [386]3 years ago
6 0
\dfrac{1}{2x}  = 20 

\dfrac{x}{2}=20 


x=20*2
 
  Multiply \ both \ sides \ by \ 2 

x=40


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A college parking lot is 140 ft long and 90 ft wide. The college wants to increase the area of the lot by 29% by adding strips o
Novay_Z [31]
The initial dimenssions of the park lot are:

length: 140 ft
width: 90 ft

initial area: 140 * 90 = 12,600 ft^2

Area increased 29% = 12,600 * 1.29 = 16,254 ft^2

width of the strips: x

New length: 140 + x

New width: 90 + x

New area: (140+x)(90+x) = 16,254

Solution of the equation:

12600 + 230x + x^2 = 16254

=> x^2 + 230x - 3654 = 0

Use the quadratic formula.

x = {-230 +/- √[ 230^2 - 4*1*(-3654) ]} / 2 =

x = 14.92

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5 0
3 years ago
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Alex17521 [72]

Answer:

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b = 1

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4(x - 5) = 4x - 20

x^{2} - 5x + 4x - 20 = 4

x^{2} - x - 20 = 4

x^{2} - x - 20 - 4 = 0

x^{2} - x - 24 = 0

a = 1

b = 1

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4 0
3 years ago
Factor completely 5b^2-11b+6
vekshin1

Answer:

(b - 1) (5b - 6)

Step-by-step explanation:

3 0
3 years ago
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marusya05 [52]
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3 years ago
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Stells [14]

Answer:

54

Step-by-step explanation:

3x -(7-x) = 29       remove the parens

3x - 7 + x = 29     simplify

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4x = 36            divide by

x = 9

then 6x = 6 * 9 = 54

7 0
1 year ago
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