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tangare [24]
3 years ago
7

How to do this ? Cause i don't understand

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
3 0
The equation you want to use is  15 (set price) + 6x (x is the number of hours) = total price. 
The you would have to solve for x.
15+6x=39
-15      -15
       6x=24
      /6    /6
          x= 4                     
He payed to have the bike checked out for four hours.

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I need help with this
Lisa [10]

Answer:

1

Step-by-step explanation:

15,580.84 rounded to the nearest 10 thousand is 20,000

8 0
3 years ago
How old would someone be if they were born on the 30th october 1992 ????
alexdok [17]
Today is March, 19th 2016
so from 1992 have been: 2016 - 1992 = 24 years
but the date is from October 30th, so we are not at 24 years just yet, we are at 23 years and the months and days since last 30th October, that is:
November + December + January + February = 4 months
and some days more, 19 days because today is 19th, so the total is:
23 years, 4 months, 19 days

4 0
3 years ago
Read 2 more answers
The masses mi are located at the points pi. find the moments mx and my and the center of mass of the system. m1 = 2, m2 = 5, m3
creativ13 [48]
Most graphing calculators will do weighted averages pretty easily. It is mostly a matter of data entry.

mx = -2
my = 10
(x, y) = (mx, my)/10 = (-0.2, 1)

6 0
4 years ago
A square has sides 5 inches long. what is the approximate length of a diagonal of the square?
Nina [5.8K]

Answer:

20

Step-by-step explanation:

5x4= 20

4 0
3 years ago
Given a mean of 61.2 and a standard deviation of 21.4 what is the z score of the value 90 rounded to the nearest tenth?
Nitella [24]

Answer:

The z-score of 90 is 1.35

Step-by-step explanation:

The z-score is calculated using the formula:

z =  \frac{x -  \mu}{ \sigma}

From the question, it was given that the mean is

\mu = 61.2

and the standard deviation is

\sigma = 21.4

and x=90.

We substitute the given values to obtain:

z =  \frac{90 - 61.2}{21.4}

z =  \frac{28.8}{21.4}  = 1.35

6 0
3 years ago
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