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9966 [12]
2 years ago
5

What is the value of x, when -25(x - 4) = -55(x - 10)?

Mathematics
2 answers:
DochEvi [55]2 years ago
4 0

Answer:


Step-by-step explanation:

The answer is d i took the test


Murljashka [212]2 years ago
3 0
-25(x-4)=-55(x-10)
-25x+100 = 55x-550 |+25x
100 = 80x-550          |+550
650 = 80x                 | /80
65/8 = x
x = 8 1/8
C

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a survey asked 72 randomly chosen students if they were going to attend the school play. twelve said yes. if there are 210 ticke
Ugo [173]
We can solve this by setting up a proportion:

12 seeing the play/ 72 students = 210 seeing the play/ x students

We can cross multiply to solve for x:

(12)x=(72)(210)
12x=15,120
x=1,260 students who attend the school
4 0
3 years ago
An automobile manufacturer sold 30,000 new cars, one to each of 30,000 customers, in a certain year. The manufacturer was intere
snow_lady [41]
A) In order to create a sampling plan, you need to follow the following 5 steps:
    1) Define the sample population: who are the customers you want to contact?
       The costumers who bought a new car on a certain year.
    2) Define the size of population: how many customers are you going to contact?
       Of the 30000 customers who bought a car, you want to contact 1000 customers.
    3) Define the contact options: how are you going to contact the customers?
       You have a list of names and addresses, therefore you can send a questionnaire via mail.
    4) Form a sampling frame: what is the time or contact frame to get in touch with your customers? 
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    5) Define the analysis method: is yours a qualitative or quantitative research?
     In your case, you want a quantitative research and therefore a probabilistic sampling.

B) The 32.5% probability refers to customers having issues with the power doors locks among the costumers who had problems, it does not consider the customers who did not have any problem or those who had problems after the first 5000 miles.

C) In order to find the probability of a power door lock problem if there have been problems within the first 5000 miles, we need to consider the whole sample:
P = 13 / 1000
   = 0.013

Therefore, 
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Hence, the number of new cars sold that experienced a problem with the power door locks within the first 5000 miles will be 390.
         
4 0
3 years ago
Find the perimeter of 24+2×+11 and 6×-8+7×-19+24​
Kipish [7]

Answer:

Step-by-step explanation:

4 0
3 years ago
Pllsssss help <br> Explanation plsss
aleksklad [387]

Answer:

x = 17

Step-by-step explanation:

8x - 9 + 53 = 180 (collect like terms)

8x + 44 = 180 (subtract 44 on both sides)

8x = 136 (divide by 8 on each side)

x = 17

HOpe this helps!!

5 0
3 years ago
Please help i will give brainlyest i promise
oksian1 [2.3K]

Answer:

the fist one

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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