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Paladinen [302]
2 years ago
10

4x + 7x - 2 + 5x - 10 find the value of x

Mathematics
1 answer:
valina [46]2 years ago
3 0

Answer:

x = 4/5

Step-by-step explanation:

1) Group like terms

   4x + 7x + 5x - 2 - 10 = x

2) Add similar elements

   16x - 2 - 10 = x

3) Subtract

   16x - 12 = x

4) Add 12 to both sides

   16x - 12 + 12 = x + 12

5) Simplify

   16x = x + 12

6) Subtract x from both sides

   16x - x = x + 12 - x

7) Simplify

   15x = 12

8) Divide both sides by 15

    15x/15 = 12/15

9) Simplify

   x = 4/5

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Gennadij [26K]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Let's solve for x :

  • \sqrt{x - 2}  - x =  - 2

  • \sqrt{x - 2}  = x - 2

  • 1 =  \dfrac{x - 2}{ \sqrt{x - 2} }

  • 1 =  \sqrt{x - 2}

  • x - 2 = 1

  • x = 3
4 0
3 years ago
pls help me guys may brainlest,5 star,1 heart,at follow kayo saakin pag nasagot miyo ito 3 questions lang naman po ito eh1.mitch
Natalija [7]

Answer:

a. 1/2 + 9/10 = 5/10+9/10 = 14/10 = 7/5 = 1 2/5 meters or ribbon

b. 5/8 = 15/24, 7/12 = 14/24 Jeff jogged longer and by 1/24 kilometers

c. 3/9 = 6/18. 15/18-6/18 = 9/18 = 1/2 left.

Hope this helps :)

Step-by-step explanation:

3 0
2 years ago
Suppose calls are arriving at a telephone exchange at an average rate of one per second, according to a Poisson arrival process.
antoniya [11.8K]

Answer:

Explanation has been given below

Step-by-step explanation:                    

a) inter arrival times are exponentially distributed with mean 1/n , where n = rate = 1/sec.                                                                              

  probability distribution function is F(t)=n*exp(-n*t).  

reference to any kth packet and the (k-1)th packet

the answer is = integration of F(t).dt with limits 0 to 2 = 1 - exp(-2*n) = 1 - exp(-2)  

b)  t=5 , P(q) = exp(-5)*(5)^q/factorial(q)  

probability of fourth call within t=5 seconds is =  

that is P(4)   P(5)   ......  = 1 - ( P(0)   P(1)   P(2)   P(3) ) ;  put the values and get the answer.  

c) number of calls/rate =  4/n = 4 seconds

5 0
3 years ago
A retailer buys a coat in bulk at a unit price of $45. The coat is marked up to 28% to sell in the store. What is the price of t
inessss [21]
The answer is $57.60

(The original price) 45+ 12.60 (28% of 45) = 57.60
6 0
3 years ago
please help I'm actually crying! Find A and B if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2
Eddi Din [679]

Answer:

awwww dont cry. i know this isnt helpful but if it makes u feel better, im stuck on it too. Take a deep breath and hope someone will come and help us, <3

Step-by-step explanation:

4 0
2 years ago
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