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Gre4nikov [31]
3 years ago
9

Can someone explain how we solve this problem

Mathematics
2 answers:
Virty [35]3 years ago
5 0
X + 5 - 1/x = x - 7 + 1/x
Bring x + 5 - 1/x together using the common denominator x. Bring x - 7 + 1/x together using the common denominator x:
(x^2 + 5 x - 1)/x = (x^2 - 7 x + 1)/x
Multiply both sides by x:
x^2 + 5 x - 1 = x^2 - 7 x + 1
Subtract x^2 - 7 x + 1 from both sides:
12 x - 2 = 0
Factor constant terms from the left hand side:
2 (6 x - 1) = 0
Divide both sides by 2:
6 x - 1 = 0
Add 1 to both sides:
6 x = 1
Divide both sides by 6:
Answer:  x = 1/6
riadik2000 [5.3K]3 years ago
4 0
It is look so x=? so if it was 2 then it would be
2-1 = 2+1
_______          which is wrong so that's how to do it which is x?
2+5 = 2-7 

the answer is 1/7 so ya its D.1/7 :) hope i helped
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8 0
2 years ago
What is the first term of the geometric sequence whose fifth term is 1/24 and tenth term is 1/768
Neporo4naja [7]
An=a1r^(n-1)

given
a5=1/24
a10=1/768

we know that
a5=1/24=a1r^(5-1) and
a10=1/768=a1r^(10-1)

so
1/24=a1r^4
1/768=a1r^9

(a1r^9)/(a1r^4)=r^5=(1/768)/(1/24)=1/32

r^5=1/32
take 5th root of both sides
r=1/2

we have
a5=a1r^4=1/24
evaluate r^4 or (1/2)^4
1/16
a1(1/16)=1/24
times both sides by 16/1
a1=16/24
a1=2/3

the first term is 2/3



7 0
3 years ago
At 6 a.m. the temperature was 18oF. By noon it had risen to 36oF. A student claimed that it was then "twice as warm" as it was a
mart [117]
Yes, 18 x 2 + 36, therefore the student was correct

4 0
3 years ago
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3. BASKETBALL Alonzo and Miguel scored a total of 54 points in the basketball game. Miguel scored four more points than Alonzo.
RSB [31]

Answer:

Alonzo scored 25 points. Miguel scored 29 points.

Step-by-step explanation:

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7 0
3 years ago
Mrs. O'Neill had nine times as many markers as colored pencils the total number of markers and colored pencils is 110 how many c
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