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REY [17]
3 years ago
8

1by2 of x-1 by 2 equals 2x what is the valueof x

Mathematics
1 answer:
alexandr402 [8]3 years ago
8 0

Answer:

x=-\frac{1}{7}

Step-by-step explanation:

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The combination lock has three wheels, each numbered from 0 to 9. What is the probability that someone randomly guesses the corr
Karolina [17]
Since it is not mentioned in the problem, we will assume that repeating of number is allowed.
For the first wheel, you have 10 possible digits.
For the second wheel, you have 10 possible digits.
For the third wheel, you have 10 possible digits.
10 x 10 x 10 = 1000
The probability that someone randomly guesses the correct combination in his first attempt is 1/1000.

If this was without repeat, then 
10*9*8 = 720
The probability that someone randomly guesses the correct combination in his first attempt is 1/720.
5 0
4 years ago
Park A covers an area of 4,926 square kilometers. It is 1,845 square kilometers larger then park B park C is 4,008 square kilome
suter [353]

Answer:

10779

Step-by-step explanation:

8 0
3 years ago
Calculate the following expressionusing the order of operations. show all steps( do not combine more than two numbers together a
Neko [114]

Answer: 204\frac{2}{5}

Step-by-step explanation:

Given the following expression:

(\frac{7}{15}+\frac{125}{9})^2-16(\frac{0.25}{2})

You can follow these steps in order to solve the exercise:

1. You need to solve the operations inside the parentheses:

- Add the fractions. Since they have different denominators, you have to find the Least Comon Denominator (LCD):

15=3*5\\9=3*3=3^2\\LCD=5*3^2=45

- Solve the division divididing the numerator 0.25 by the denominator 2.

Then, you get:

(\frac{(3)(7)+(5)(125)}{45})^2-16(\frac{0.25}{2})\\\\(\frac{646}{45})^2-16(0.125)

2. Solve the exponent:

\(\frac{417,316}{2,025}-16(0.125)

3. Solve the multiplication:

\(\frac{417,316}{2,025}-2

4. Solve the subtraction:

\(\frac{417,316-(2,025)(2)}{2,025}=\frac{413,266}{2,025}\approx204.08

5. Since :

0.8=\frac{2}{5}

You can write the result as a mixed fraction:

=204\frac{2}{5}

7 0
3 years ago
Solve 6 - 2 = 2(15 - x)<br><br> a.no solution<br><br> b. -5<br><br> c. 5<br><br> d. all real numbers
IRISSAK [1]
No solution
hope I helped
8 0
3 years ago
HELP DUE IN 10 MINS!<br><br> Solve for x.<br><br> 5 / 4x - 6 = 2 / x - 9
KonstantinChe [14]

\\ \sf\longmapsto \dfrac{5}{4x-6}=\dfrac{2}{x-9}

\\ \sf\longmapsto 5(x-9)=2(4x-6)

\\ \sf\longmapsto 5x-45=8x-12

\\ \sf\longmapsto 5x-8x=-12+45

\\ \sf\longmapsto -3x=33

\\ \sf\longmapsto x=\dfrac{33}{-3}

\\ \sf\longmapsto x=-11

5 0
3 years ago
Read 2 more answers
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