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3 years ago

What is the median of 70, 85, 79, 88, 95, 80, 100 , 75, 100, and 85?

Mathematics

2 answers:

VLD [36.1K]3 years ago

8 0

Answer:

line the numbers up least to greatest and the median is the middle number in this case it is

Step-by-step explanation:

70, 75, 79, 10, 85, 88, 95, 100, 100

85 is your answer

blondinia [14]3 years ago

4 0

Answer:

Step-by-step explanation:

https://www.calculatorsoup.com/calculators/statistics/mean-median-mode.php

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Randy school requires that there are two adult chaperones for every 18 students when the students go on a field trip to the muse

Viktor [21]

Use a proportion.

2 adults to 18 students is as x adults to 99 students.

2/18 = x/99

18x = 2 * 99

18x = 198

x = 11

Answer: 11 adults

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3 years ago

The given line passes through the points (−4, −3) and (4, 1).

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1+3/4+4
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2 years ago

Write the equation x2=7x in standard form.

seraphim [82]

Answer:

i believe it's x2-7x=0

Step-by-step explanation:

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2 years ago

K/1.5 = 3<br> what is k though?<br> pls help me

Mekhanik [1.2K]

Answer: k = 4.5

Step-by-step explanation:

3 0

3 years ago

Write the rule for the nth term of each sequence.

stira [4]

Rule for sequence a is: a_n = 10-3n

Rule for sequence b is: a_n = -19+8n

Step-by-step explanation:

a.)7, 4, 1, -2, ...

First of all we have to find the common difference. Common difference is the difference between consecutive terms of an arithmetic sequence

Here,

$a_1 = 7\\a_2 = 4\\a_3 = 1\\d = a_2 - a_1 = 4-7 = -3\\d = a_3 - a_2 = 1-4 = -3$

The explicit rule for an arithmetic sequence is:

$a_n = a_1 + (n-1)d$

Putting the value of a1 and d

$a_n = 7 + (n-1)(-3)\\a_n = 7 -3n+3\\a_n = 10-3n$

b.)-11, -3, 5, 13, ...

First of all we have to find the common difference. Common difference is the difference between consecutive terms of an arithmetic sequence

Here,

$a_1 = -11\\a_2 = -3\\a_3 = 5\\d = a_2 - a_1 = -3+11 = 8\\d = a_3 - a_2 = 5+3 = 8$

The explicit rule for an arithmetic sequence is:

$a_n = a_1 + (n-1)d$

Putting the value of a1 and d

$a_n =-11 + (n-1)(8)\\a_n = -11 +8n-8\\a_n = -19+8n$

Hence,

Rule for sequence a is: a_n = 10-3n

Rule for sequence b is: a_n = -19+8n

Keywords: Arithmetic sequence, common difference

Learn more about arithmetic sequence at:

#LearnwithBrainly

8 0

2 years ago