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Agata [3.3K]
3 years ago
9

1/2 (x-4)= -8 find the variable

Mathematics
1 answer:
scZoUnD [109]3 years ago
3 0

Answer:

x = -12

Step-by-step explanation:

=> 1/2 (x-4) = -8

=> x-4 = -8 × 2

=> x-4 = -16

=> x = -16+4

=> x = -12

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What is the surface area of the cube with the given edge length, s?
babymother [125]

Answer:

Step-by-step explanation: 6a squared

7 0
4 years ago
Describe the center and spread of the data using either the mean and standard deviation or the five-number summary. Justify your
goblinko [34]

Answer:

The distribution is skewed, so use the five-number summary. range: 38, median: 16, half of the data are between 9.5 and 25

Step-by-step explanation:

In the picture attached the histogram is shown. We can see that data is skewed to the right, so we have to use the five-number summary. The range of the data is 39 - 1 = 38 (subtraction of the maximum value to the minimum value); the median is (15 + 17)/2 = 16 (if you order the values, 15 and 17 are in the middle); quartile 1 is 9.25 and quartile 3 is 25.5 (see diagram of box and whisker attached), then half of the data are between those values.

8 0
3 years ago
Mary month earnings can be given as R(x)=13x+155 where x equals the number of hours worked josies monthly are given as Q(x)=9x+3
tatuchka [14]

Answer:

45hours

Step-by-step explanation:

Given

Mary month earnings to be R(x)=13x+155

Josies monthly earning is given as Q(x)=9x+335

If Josie and Mary work to earn the same salary, then R(x) = Q(x)

13x+155 = 9x+335

subtract 155 from both sides

13x+155-155 = 9x+335-155

13x = 9x+180

subtract 9x from both sides

13x-9x = 9x+180-9x

4x = 180

x = 180/4

x = 45

Since  x equals the number of hours worked by Josie and Mary, this means that Josie and Mary must work for 45hours to earn the same salary

6 0
3 years ago
The cost of 6 CDs are $12, $13, $20, $20, $12.50 and $18.50. What is the range?
ra1l [238]
I think $8. That’s the difference between the highest and lowest number.
4 0
3 years ago
What value of x makes the equation true?
Marta_Voda [28]
So just remember tha tyou can do anything to an equation as long as you do it to both sides (except divide by 0) so
-7.12=-4.8+x
add 4.8 to both sides since -4.8+4.8=0 so it cancels
4.8-7.12=x
simplify
4.80-7.12=-2.32
-2.32=x
the naswer is C
3 0
4 years ago
Read 2 more answers
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