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Kaylis [27]
1 year ago
11

Solve for x in the equation 4/x-3=x

Mathematics
2 answers:
Nutka1998 [239]1 year ago
8 0

Answer:

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svetlana [45]1 year ago
5 0

Answer:

Step-by-step explanation:

Comment

Multiply through by x - 3

Then factor the result

4*(x - 3) / (x - 3) = x*(x - 3)

4 = x * (x - 3 )                          Remove the brackets

4 = x^2 - 3x                            Subtract 4 from both sides

4-4 = x^2 - 3x - 4                    Simplify

0 = x^2 - 3x- 4

This factors

0=(x - 4)(x + 1)

Answer

x - 4 = 0

x = 4

x+ 1 = 0

x = - 1

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A rectangular parking lot has a perimeter of 820 ft. The area of the parking lot measure SL 42,000 ft
horsena [70]

Answer:

a= 200

b = 210

Step-by-step explanation:

My assumption is, we have to find the length of sides of rectangle

Given

perimeter = 2a + 2b = 820 ft (i) (here a is smaller side and b is larger side)

area = a*b = 42,000 ft^2 (ii)

from eq (1)

2a + 2b = 820

=> 2(a+b) = 820

=> a+b = 820/2

=> a + b = 410

=> a = 410-b   (iii)

putting the value of a in eq(ii), we get

(410-b) *b = 42,000

410b - b^2 = 42,000

0 = b^2 - 410b + 42000

b^2 - 410b + 42000 = 0

b^2- 200b- 210b + 42000 = 0

b(b-200)-210(b-200) = 0

(b-200)(b-210) = 0

or

b= 210 and b = 200

if b is larger side than b =210

By putting value of b in eq(iii),

a = 410 -210 = 200

 

6 0
3 years ago
How many seconds are there in a month of 30 days express it in scientific notation​
Evgesh-ka [11]
Answer: 2.592 x 10^6 seconds

Explanation:

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Write in scientific notation:

2, 592, 000 = 2.592 x 10^6

6 0
2 years ago
Brett has a $30 online gift voucher. He plans to buy as many books as he can . The cost of each book is $4. There is also a sing
Mrac [35]

Answer:

7

Step-by-step explanation:

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5 0
3 years ago
Please help with this question
OLga [1]
Plug in the values of x and y into each ineqaulity and see  which one fits 

You'll find it is d
5 0
3 years ago
How to convert whole number as fraction​
Mice21 [21]

To <u>convert an integer to a fraction</u> you must choose an expression that does not alter the numerical value. You can do this with multiples of the number, for example, for 100:

100/1 = 200/2 = 300/3 = 400/4 = 100

  • The numerical value is not altered and the result will always be 100

Another example, for 500:

500 = 500/1 = 1000/2 = 1500/3 = 2000/4

<h2>{ Pisces04 }</h2>
3 0
1 year ago
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