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Gnom [1K]
4 years ago
6

How do you solve this equation? 2x-9=x+7

Mathematics
1 answer:
omeli [17]4 years ago
6 0

Answer:

x=16

Step-by-step explanation:

2x-9=x+7

2x-x=7+9

x=16

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1.<br> Carly has 35 pens in her pencil case and 20% don't work. How many don't work?
AnnyKZ [126]

Answer:

7 pens

Step-by-step explanation:

35 x 20%

35 x 0.2

= 7

5 0
3 years ago
Read 2 more answers
What is the explict formula for the arithmetic sequence -7.5,-9,-10.5,-12
elena-14-01-66 [18.8K]

Answer:

<u>x = -7.5 - 1.5(n−1) </u>

Step-by-step explanation:

the explicit formula for the arithmetic sequence has the form

x = a + d(n−1)

a is the first term and d is the common difference

The given arithmetic sequence is

-7.5,-9,-10.5,-12

The first term is -7.5

d = common difference = -9 - (-7.5) = -1.5

∴ x = -7.5 - 1.5(n−1)

8 0
4 years ago
halla la altura de la torre con los datos ofrecidos `por el equipo de ingenieros la longitud entre el niño y la punta de la torr
Gnoma [55]

Answer:

The height of the tower is 245 m

Step-by-step explanation:

<u><em>The complete question in English is </em></u>

Find the height of the tower with the data provided by the engineering team. Value of the segment ab= 50 m. The length between the child and the tip of the tower is 250 m

<u><em>The picture in the attached figure </em></u>

we know that

In the right triangle ABC

Applying the Pythagorean Theorem

AC^2=AB^2+BC^2

we have

AB=50\ m\\AC=250\ m

substitute

250^2=50^2+BC^2

BC^2=250^2-50^2

BC^2=60,000\\BC=245\ m

4 0
4 years ago
The<br> square<br> root of<br> 80
pochemuha
Sqrt(80) = Sqrt(16) x sqrt(5)
= 4 x sqrt(5)

6 0
3 years ago
What is the least common multiple of 8 and 12?<br> 24<br> 48<br> 96
Anna007 [38]

Answer:

The least common multiple of 8 and 12 is 24

Explanation:

Find and list the multiples each number until the first common multiple is found.

This is the lowest common multiple .

Multiples of 8

8, 16, <u>24</u>, 32,40

Multiples of 12

12,<u>2</u><u>4</u>, 36,48

Therefore,

LCM of 8 and 12 is 24

3 0
3 years ago
Read 2 more answers
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