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svetlana [45]
2 years ago
13

Please help time crush 15 points!

Mathematics
1 answer:
Shkiper50 [21]2 years ago
7 0

Answer: Hello!

9. -6

10. 25

11. 16

12. 1.25

Step-by-step explanation:

Mark me brainest please. Hope I helped! Hope you make an 100%

-Anna♥

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There are 15 girls and 25 boys in a science club what percent of the members were girls
otez555 [7]
   15      /      40             =    .375
total #      total #
of girls      of students

.375 = 37.5%

15/40 as a fraction ---> simplify ---> 3/8
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3 years ago
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Morgarella [4.7K]

Answer:

ans = 112

Step-by-step explanation:

Hope it will help

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2 years ago
The fourth term of an Arithmetic Sequence is equal to 3 times the first term, and the seventh term exceeds twice the third term
11Alexandr11 [23.1K]

Answer:

The first term is 3. The common difference is 2.

Step-by-step explanation:

The first term is x.

The common difference is d.

The second term is x + d.

3rd term: x + 2d

4th term: x + 3d

7th term: x + 6d

"The fourth term of an Arithmetic Sequence is equal to 3 times the first term"

x + 3d = 3 * x       Eq. 1

"the seventh term exceeds twice the third term by 1"

x + 6d = 2(x + 2d) + 1       Eq. 2

Simplify Eq. 1:

2x = 3d

Simplify Eq. 2:

x + 6d = 2x + 4d + 1

x = 2d - 1

Multiply both sides of the last equation by 2.

2x = 4d - 2

2x = 3d   (simplified Eq. 1)

Since 2x = 2x, then the right sides are equal.

3d = 4d - 2

d = 2

2x = 3d

2x = 3(2)

2x = 6

x = 3

Answer: The first term is 3. The common difference is 2.

8 0
2 years ago
Please help me out fast ​
iris [78.8K]

Answer:

i think its c

Step-by-step explanation:

5 0
3 years ago
What numbers would equal 16 in multiplication but equal 7 in addition
Butoxors [25]
Hi maybe take a picture of the question it sounds like you are trying to solve a polynomial but the only factors of 16 are
1 and 16 -1and -16 2 and 8 and -2 and -8 i hope
But I’d you are solving a polynomial try using the quadratic formula doing something like this
7 0
3 years ago
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