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bija089 [108]
3 years ago
8

HELP ME WITH THIS PLSSSS

Mathematics
2 answers:
Yakvenalex [24]3 years ago
7 0

Answer:

It is median.

Step-by-step explanation:

a) The mean is the average of all the numbers: (81+87+93+89+61+81)/6= 82

b) The median is the middle value when the numbers are arranged in ascending order.

61,81,81,87,89,93

since it's an even number, we take the two middle numbers, in our case 81+87=168/2=84

c) The mode is the most frequent data, which in our case is 81

d) It would be the median because it has the highest grade he could get from the other options.

densk [106]3 years ago
7 0

Answer:

Jack should use the Median

Step-by-step explanation:

The median is the numbers in the middle of the list of numbers.

81, 87, 93, 89, 61, 81

93, and 89 are the highest numbers, and they're in the middle, so therefore the median is the best option.

if we use the mean we get 82 for the test scores.

and the mode would only be 81.

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The distance between two cities on a map is 3.5 centimeters the map uses a scale in which 1 centimeter represents 20 km what is
Juli2301 [7.4K]

Answer:

1 cm = 20 km

so 3.5 cm would equal : 3.5 * 20 = 70 km

hope it helps ;)

Step-by-step explanation:

5 0
3 years ago
If B equals 7 what is the value of the expression 2 + (10 - B )?
avanturin [10]

We just need to <u>plug in 7 for B! </u>

Let's do it !

2 + (10 - 7)

<em>We always start with the parenthesis first ! It's just a rule in math :) </em>

10 - 7 = ?

10 - 7 = 3

Now we have ...

2 + 3

2 + 3 = 5

Your final answer is 5!

I hope I helped :) Just comment if you have any questions and remember to vote me "brainliest" if you like my answer !!!

6 0
4 years ago
Read 2 more answers
Sophia started a lawn mowing business and charges a flat fee of $5.00 plus $3.50 per hour.
umka2103 [35]

Answer:

5 + 3.5h = 29.50

Step-by-step explanation:

The flat fee means that you will be paid the money with no change to it.

So you will not multiply it.

3.5h means that you are adding 3.50 every hour according to the question

So summary:

5+3.5h = 29.50

Evaluation:

5+3.5h = 29.50

24.50 = 3.5h

h = 7

Sofia worked 7 hours

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

4 0
3 years ago
IM DUMB.Someone smart helppppp ill give brainlest​
Montano1993 [528]

Answer:

x=45

Step-by-step explanation:

Each triangle had 180 degrees in all and the picture shows it has a right angle.   180-90=90

90/2=45

Because there are two angles left without measurement.

3 0
3 years ago
Lisa's test grades are 79, 89, and 90. there will be one more test this year. if lisa wants her test average to be at least 88,
erik [133]
For this case, what we are going to do first is to assume that all the exams are worth the same percentage of the final grade.
 We have then that Lisa's average grade point equation is:
 88 =  \frac{79 + 89 + 90 + x}{4}
 Where,
 x: minimum note that lisa must obtain in the last exam.
 Clearing x we have:
 x = (88 * 4) - (79 + 89 + 90)&#10;&#10;x = 94
 Answer:
 
the lowest grade she can get on her last test is:
 
x = 94
5 0
4 years ago
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