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inysia [295]
3 years ago
9

12) 8x - 2 = -9 + 7x Answer

Mathematics
1 answer:
kow [346]3 years ago
4 0

Answer:

-7

Step-by-step explanation:

8x - 2 = 7x - 9

8x - 2 - 7x = 7x - 9 - 7x

x - 2 = -9

x - 2 + 2 = -9 + 2

x = -7

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in 4.5 hours, 11.25 inches of snow fell suppose the same amount of snow fell each hour how much snow fell each hour
Julli [10]
If 11.25 inches snow fell in 4.5hrs,
Then for each hr how much snow fell?

So,
4.5 : 11.25
To find how many inches that fell per hour who would need to divide the number of inches by the numbers of hours

11.25 divided by 4.5 = 2.5

So the answer would be 2.5 inch was of snow per hour
6 0
4 years ago
A rectangular prism has a base that is 1.5 meters by 2 meters and the prsim is 4 meters high,What is the surface area
daser333 [38]

Answer:

34

Step-by-step explanation:

the equation is 2(lw+lh+wh)

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8 0
3 years ago
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The perimeter of a rectangle is 90 inches. The length is 8 times the width. What is the length of the diagonal?
german

Answer:

40

Step-by-step explanation:

The formula for the perimeter of a rectangle is  P = 2l + 2w.  Since the length is 8 times the width, l = 8w.  You can plug this into the equation.

<em>P = 2(8w) + 2w</em>

<em>P = 16w + 2w</em>

P = 18w

Now, plug in the given value for perimeter, and solve for w.

<em>90 = 18w</em>

<em>(90)/18 = (18w)/18</em>

5 = w

Since the width is equal to 5, you can now solve for l.

<em>l = 8w</em>

<em>l = 8(5)</em>

l = 40

The length of the diagonal is equal to 40.

3 0
3 years ago
What is the domain of the given fiction please help asap
castortr0y [4]

Answer:

C

Step-by-step explanation:

sqrt x can be zero, but you can't sqrt a negative number. there is no further restrictions on sqrt x, there it goes to positive infinity.

3 0
3 years ago
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The Jimenez family watched television for a total of 9 hours during a one-week
oee [108]

Answer:

1.3333333333333333 hrs

or

1 1/3

Step-by-step explanation:

7 0
3 years ago
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