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Art [367]
3 years ago
10

A store sells small notebooks for $7 and large notebooks for $10 if a student buys 6 notebooks and spends $51 how many of each s

ize did he buy
Mathematics
2 answers:
Finger [1]3 years ago
5 0
He bought 3 small notebooks (3*7=21) and 3 large notebooks (3*10=30)
21+30=51
Goryan [66]3 years ago
5 0
7+7+7=21
10+10+10=30 
30+21=51
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andriy [413]

Answer:

75th term in the sequence is 227.

Step-by-step explanation:

75 term of A.P is

a_75= a+ (n-1)d

Given series is 5,8,11,14.

hence a= 5 d= 8-5 = 3 , a_75.

a_75 = 5+(75-1)3

= 5+ (74)3

= 5 +(222)

= 227

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2 years ago
The total distance an object travels varies directly with the length of time it travels. If an object travels 24 meters in 9 sec
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24 / 96 = 9/x  

x = 9. 96/24 = 36

Answer: B. 36 seconds

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3 years ago
Mark had an essay due on Friday. He worked on the essay for 1.5 hours on Thursday and 4.25 hours on Fridays. How many hours did
Vika [28.1K]

Answer:

He worked for 5.75 hours

Step-by-step explanation:

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3 years ago
You have a small business making and delivering box lunches. You calculate your average weekly cost y of producing x lunches usi
kogti [31]

250 lunches are produced by the small business in last week.

<u>Step-by-step explanation:</u>

It is given that,

  • y ⇒ the average cost per week.
  • x ⇒ the number of lunches produced per week.

The function relating these two factors x and y is given as y = 2.1x + 75

  • The cost of the last week is y = $600.
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<u>To find the value of x :</u>

Substitute y= 600 in the given function,

⇒ 600 = 2.1x + 75

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⇒ x = 525 / 2.1

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Therefore, the lunches prepared last week is 250.

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3 years ago
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No, the Roger’s claim is not correct.

Step-by-step explanation:

We are given that Roger claims that the two statistics most likely to change greatly when an outlier is added to a small data set are the mean and the median.

This statement by Roger is incorrect because the median is unaffected by the outlier value and only the mean value gets affected by the outlier value.

As the median represents the middlemost value of our dataset, so any value which is an outlier will be either at the start or at the end will not the median value. So, the median will not likely change when an outlier is added to a small data set.

Now, the mean is the average of all the data set values, that is the sum of all the observations divided by the number of observations. The mean will get affected by the outlier value because it take into account each and every value of the data set.

Hence, the mean will likely to change greatly when an outlier is added to a small data set.

7 0
3 years ago
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