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harina [27]
3 years ago
9

Solve 3(2x - 5) = 9(10 - x)

Mathematics
2 answers:
alisha [4.7K]3 years ago
4 0

Answer:

x=7

Step-by-step explanation:

3(2x - 5) = 9(10 - x)

6x-15=90-9x

6x+9x=90+15

15x=105

x=7

Helen [10]3 years ago
3 0

Answer:

x = 7

Step-by-step explanation:

First, we need to expand the brackets:

3(2x-5)=9(10-x) (equation given)

6x-15=90-9x

15x -15 = 90 (add 9x on both sides)

15x = 105 (add 15 on both sides)

x = 7 (divide by 15 on both sides)

Hope this helps :)

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How do you do this question?
mr_godi [17]

Answer:

None of the above

Step-by-step explanation:

According to the divergence test, if the limit of a sequence as n approaches infinity does not equal 0, then the series diverges.  (Notice that if the limit does equal 0, the series doesn't necessarily converge).

According to the geometric series test, a geometric series converges if -1 < r < 1, and diverges otherwise.

The first series is a geometric series with r = -5/3.  So it diverges.

The second series is also a geometric series:

3ⁿ⁻¹ / 2ⁿ = ⅓ (3ⁿ / 2ⁿ) = ⅓ (3/2)ⁿ

r = 3/2, so it diverges.

For the third series, the limit as n approaches infinity equals 1.  This fails the divergence test, so this series also diverges.

For the fourth series, the limit as n approaches infinity equals 1.  This fails the divergence test, so this series also diverges.

5 0
3 years ago
Please help idk the answer 30 points and branliest
g100num [7]
One flag is a translation image of the other.

This is as one of the flags is a duplicate of the other which is moved up / down by a certain distance based on which flag you are basing it on.

For example, if you are looking at the top flag. It appears as if that flag was duplicated and pulled down to show the bottom flag. Therefore, one flag is a translation image of the other.

It isn't that one flag is a rotation image of the other as both flags are vertical and aren't rotated in any direction. Therefore, it isn't that one flag is a rotation image of the other.
3 0
3 years ago
Find the volume of a pyramid with a square base, where the perimeter of the base is 7.3\text{ ft}7.3 ft and the height of the py
Cloud [144]

Answer:

V=6.66\ ft^3

Step-by-step explanation:

The perimeter of the square base of a pyramid = 7.3 ft

The height of the pyramid, h = 6ft

The perimeter of a square is given by :

P = 4s, s is the side of square

7.3 = 4s

s = 1.825 ft

The volume of a pyramid is given by :

V=\dfrac{lbh}{3}

Here, l = b = 1.825 ft

So,

V=\dfrac{1.825\times 1.825\times 6}{3}\\\\V=6.66\ ft^3

So, the volume of the pyramid is equal to 6.66\ ft^3.

3 0
3 years ago
3а - 10 = a + 20<br><br><br><br><br> How do you do this help please it will mean a lot
marin [14]

Answer:

a=15

Step-by-step explanation:

2a-10=20

2a=30

a=15

can i have one brainliest plz

7 0
3 years ago
Read 2 more answers
I need help ASAP please
natta225 [31]

Answer:

2j+j =21

Step-by-step explanation:

if j is Jas

Henry is 2 × Jas; which is 2j

so

j = Jas

2j = Henry

Henry + Jas = 21

input values for Jas and Henry

2j + j = 21

3 0
3 years ago
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