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seropon [69]
3 years ago
13

The number of minutes Magdeline spent talking on her cell phone each month for the past five months were 494, 690, 502, 478, and

486. Suppose the mean for six months was 532 minutes, how many minutes did she talk on her cell phone in the sixth month?
Mathematics
1 answer:
snow_lady [41]3 years ago
7 0

Answer:

542 minutes

Step-by-step explanation:

currently our mean is =530

i got that by adding all the number out which equal too =2,650

and divide it by how many number there are which is 5

2,650/5=530

After some trial and error i found it

so you add 494+690+502+478+486+542=3,192

3,192/6=532

and that was our goal

so the 6th month she talked on the phone for 542 minutes

pls mark me brainliest

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What is the average rate of change of the function over the interval x = 0 to x = 8?
salantis [7]
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Explanation:
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Where
b = 8 (x's upper bound)
a = 0 (x's lower bound)

f(b) = f(8) =  \frac{2*8-2}{5*8-6} =  \frac{7}{17} \\ f(a) = f(0) =  \frac{2*0-2}{5*0-6} =  \frac{1}{3} \\  \frac{f(b)  - f(a)}{b-a} =  \frac{ \frac{7}{17} -  \frac{1}{3}}{8} =  \frac{1}{102}

Hence the average rate of change of function = \frac{1}{102} (in fraction)
5 0
3 years ago
What is the probability of drawing two blue marbles if the first one is placed back in the bag before the second draw
Ilia_Sergeevich [38]
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7 0
3 years ago
What is an explicit formula for the geometric sequence -64,16,-4,1,... where the first term should be f(1).
nirvana33 [79]

Answer:

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the explicit formula is :

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3 years ago
Zoe keeps track of the miles per gallon her car gets per week. She has accumulated the following data:
padilas [110]
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3 0
3 years ago
Read 2 more answers
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Elan Coil [88]

Answer:

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We get:

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Therefore, the probability is P=0.74.

8 0
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