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erma4kov [3.2K]
3 years ago
11

B is between A and C. If AB = x - 5, BC = x + 14, and AC = 35 then x = ________ (just enter your answer as the number only)

Mathematics
2 answers:
sertanlavr [38]3 years ago
7 0

Answer:

x=13

like the other person said but ill show you how

Step-by-step explanation:

(x-5)+(x+14)=35

add the x's together

add up the -5 and the 14

2x+9=35

subtract 9

2x=26

divide 2

x=13

Pachacha [2.7K]3 years ago
5 0

Answer:

AB+BC=AC

Plug in these numbers.

x+2x+3=4x-12

Combine like terms

Step-by-step explanation:

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Plot the image of point Q under a reflection across the -axis.
Jlenok [28]

Answer:

pit it on -4 because your reflecting it on x

7 0
3 years ago
In five consecutive tosses of a coin, what is the probability of not getting a tail until the 5th coin toss?
jasenka [17]
The proabability would be 50% always
3 0
3 years ago
Please answer all i need help Factor the expression using the GCF. 50x-60 Next one Factor the expression using the GCF. 16m+40 n
Anton [14]

Answer:

10(5x - 6).

8(2m + 5).

9(3 - 5c)

Step-by-step explanation:

Given that

50x-60

16m+40

27-45c

The greatest common factor is a measure of the highest number present inside, or common to all the numbers that were listed. To take this one at a time, we have....

50x - 60. The highest number common to both of them is 10, and thus, we have

50x - 60 = 10(5x - 6), and this is the solved part.

16m + 40. The greatest number that's present inside both numbers is 8, and thus we have

16m + 40 = 8(2m + 5) and this is the solved part.

27 - 45c. The greatest common number is 9, and as a result, we have

27 - 45c = 9(3 - 5c), and this is the solution we were searching for

7 0
3 years ago
Given that k is a positive integer. Find, in terms of k, an expression for Sn, which is the sum of the integers from 2k to 4k in
Elden [556K]

Answer:

S_n=3k\cdot (2k+1)=6k^2 +3k

Step-by-step explanation:

k is a positive integer.

Consider an arithmetic sequence:

a_1=2k\\ \\a_n=4k\\ \\d=1

First, find n:

a_n=a_1+(n-1)\cdot d\\ \\4k=2k+(n-1)\cdot 1\\ \\2k=n-1\\ \\n=2k+1

Now, find the sum of these 2k+1 terms:

S_n=\dfrac{a_1+a_n}{2}\cdot n\\ \\S_n=\dfrac{2k+4k}{2}\cdot (2k+1)=\dfrac{6k}{2}\cdot (2k+1)=3k\cdot (2k+1)=6k^2 +3k

7 0
3 years ago
A number minus 5 is between 2 and 8
vredina [299]

Answer:

either 7 or 8 but, 8 is most likely.

start with the numbers in the set 2,3,4,5,6,7,8

its supposed to be between 2 and 8

the only number that would work is 7 and 8 if you use 7 you get 2 and if you use 8 you get 3

5 0
3 years ago
Read 2 more answers
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