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frozen [14]
3 years ago
9

-4(x + 2.1) + 3x = 8.4 what is x

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
5 0

Answer:

x= −16.8

Step-by-step explanation:

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Etsy is an e-commerce website focused on handmade or vintage items and supplies, as well as unique factory-manufactured items. A
inysia [295]

Answer:

Step-by-step explanation:

given that Etsy is an e-commerce website focused on handmade or vintage items and supplies, as well as unique factory-manufactured items. A shop owner on Etsy sells printed t-shirts and she wants to know what level of inventory she should maintain for the month of January. She gathers the January inventories of 8 other shop owners who sell printed t-shirts on Etsy. Their t-shirt inventories are listed below.

59 84 90 54 42 45 77 85

a) Mean = total /8 = 536/8 = 67

For median arrange in ascending order

42 45 54 59 77 84 85 90

Middle entries are 59 and 77

b) Median = average of 59 and 77 = 68

c) If highest changes to 100, data set becomes

42 45 54 59 77 84 85 100

sum increases by 10 i.e. 546

Mean = 546/8 = 68.25

Median will not change remain the same = 68

Mean increases and median stays the same

d) If Var = 369.1429

std dev = square root of variance

= 19.2131

e) Part b answer is the II quartile

f) Mean = 67 and median = 68

Mean < median

So negatively skewed shape

7 0
3 years ago
X+8y<br> units<br> 8x -x+5y units<br> what’s the perimeter?
pochemuha

Answer:

P = 16x+26y units

Step-by-step explanation:

Let the length is (x+8y) units

Width = (8x-x+5y) units

We need to find the perimeter. We know that the perimeter is equal to the sum of all sides.

P = 2[(x+8y) + (8x-x+5y)]

= 2[(8x+8y+5y)]

= 2[8x+13y]

= 16x+26y

Hence, the required perimeter is 16x+26y.

3 0
3 years ago
Mark practices his guitar 3/4 hours each day. How many hours does he practice in seven days?
Mashutka [201]
3/4 *7
or
0.75*7
The answer is 5.25
6 0
3 years ago
Mrs. Shultz went to New York to do her Christmas shopping. She took a cab to go into the city and they charged her a flat fee of
Orlov [11]

Answer:

12 miles

Step-by-step explanation:

30-6=24

24/2=12 miles

3 0
3 years ago
Need help asap!! No links please!!! I will give brainliest to best answer. Don't answer if you don't know!
Olin [163]

Answer:

3/4 students (75/100)

Step-by-step explanation:

in total there are 100 students. 75 of them either like sports or works.

6 0
2 years ago
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