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lukranit [14]
3 years ago
11

the typical saturday the oil change facility will perform 40 oil changes between 10 am and 12pm. treating this as a random sampl

e, what mean oil change time would there be a 10% chance of being at or below? There is a 10% chance of being at or below a mean oil change time of ____ minutes
Mathematics
1 answer:
pshichka [43]3 years ago
4 0
Based on evidence give its probably 34
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Questions of 8. Step 1 of 1 5/8 Correct Incor In November, Mr. Carlisle opened a checking account and made deposits of $612. $75
quester [9]

Answer:

$616

Step-by-step explanation:

When you add all the values that were added to his account, he added $3,089.When you add all the values that he wrote checks for (subtracted), he took out $2,473. When you subtract 2,473 from 3,089, you get 616, which is how much money is left in his account.

8 0
3 years ago
Can anyone give me the answer and tell me how you did it?
pav-90 [236]

Answer:

the answer is 150

Step-by-step explanation:

8 0
3 years ago
Miguel and three of his friends went to the movies. They originally had a total of $40. Each boy had the same amount of money an
Alenkasestr [34]

Answer:

The money each boy had after buying his ticket is <u>$2.50</u>.

Step-by-step explanation:

Given:

Miguel and three of his friends went to the movies. They originally had a total of $40. Each boy had the same amount of money and spent $7.50 on a ticket.

Now, to find the money each boy had after buying his ticket.

Let the money each boy had after buying his ticket be x.

Total number of boys = 4.

Total money they had = $40.

Money each boy spent = $7.50.

Now, to write an equation:

4(x+7.50)=40

Now, to solve the equation for getting the money each boy had after buying his ticket:

4(x+7.50)=40

4x+30=40

<em>Subtracting both sides by 30 we get:</em>

4x=10

<em>Dividing both sides by 4 we get:</em>

x=\$2.50.

Therefore, the money each boy had after buying his ticket is $2.50.

3 0
3 years ago
Given the following formula for V=4r. How would you solve for "r"?
Artyom0805 [142]
R = v/4
because:
v = 4r
v/4 = 4r/4 the fours cancel out and you are left with r
therefore v/4 = r or r = v/4
7 0
3 years ago
The exponential decay graph shows the expected depreciation for a new boat, selling for $3500, over 10 years a. Write an exponen
Alex Ar [27]
For the answer to the question above,  
<span>V(n) = a * b^n, where V(n) shows the value of boat after n years. 
V(0) = 3500 
V(2) = 2000 

n = 0 
V(0) = a * b^0 = 3500 
a = 3500 

V(2) = a * b^2 
2000 = 3500 * b^2 
b = sqrt (2000/3500) 
b ≈ 0.76 

V(n) = 3500 * 0.76^n 

We can check it for n = 1 which is close to 2500 in the graph: 
V(1) = 3500 * (0.76)^1 
V(1) = 2660 

And in the graph we have V(3) ≈ 1500, 
V(n) = 3500 * (0.76)^3 ≈ 1536 

Now n = 9.5 
V(9.5) = 3500 * (0.76)^(9.5) 
V(9.5) ≈ 258</span>
4 0
3 years ago
Read 2 more answers
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