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3 years ago

Find the difference:x+1/x-1 - x-8/x-1

Mathematics

2 answers:

Leno4ka [110]3 years ago

7 0

<h2>Answer: 9/(x - 1)</h2>

<h3>Step-by-step explanation:</h3>

Because both terms have the same denominator, then we can subtract the numerators upon the same denominator:

⇒ x+1/x-1 - x-8/x-1 = ((x + 1) - (x - 8))/(x - 1)

= (x + 1 - x + 8)/(x - 1) <em>[expand the brackets and simplify]</em>

= 9/(x - 1)

ELEN [110]3 years ago

5 0

Answer:

The answer is 9/x-1

Step-by-step explanation:

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At 7:00 p.m., there are 1,000 home-team fans and 700 away-team fans at a football game. After 7:00 p.m, 15 home team fans arrive

OleMash [197]

Answer:

Therefore the ratio of home-team fan to away team fan at 8:00 p.m is

=109:67

Step-by-step explanation:

Initially , total home team fans =1000

and away team fans = 700.

7:00 pm to 8:00 pm = 1 hour = 60 minutes

Given that

Every 10 minutes the number of arrival home team fans is 15.

Then in 1 minutes the number of arrival home team fans is $\frac{15}{10}$

and in 60 minutes the number of arrival home team fans is $\frac{15 \times 60}{10}$

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Therefore total home team fans = (90+1000)=1090

Given that

Every 10 minutes 5 fans leave of away team leave.

then in 1 minutes $\frac{5}{10}$ fans leave of away team leave.

and In 60 minutes $\frac{5\times 60}{10}$ =30 fans leave of away team leave.

Since 30 away team fans leave.

Total away team fans = (700-30)=670

Therefore the ratio of home-team fan to away team fan at 8:00 p.m is

=1090:670

=109:67

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