3 years ago

Can anyone help me solve this question

Mathematics

1 answer:

Nady [450]3 years ago

8 0

Answer:

Step-by-step explanation:

x-1/ x+5 × x+1/x-5=

Use double brackets=

(x-1)(x+1)/(x+5)(x-5)

Expand the brackets and simplify

x²-1/x²-25

So your answer is b

I hope this helps :)

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4 years ago

Read 2 more answers

What number is 45% of 60, as well as 8 is 0.5% of what number?

JulsSmile [24]

Hi!

We can set up proportions to solve these.

1. $\frac{x}{60} \frac{45}{100}$

2. $\frac{8}{x} \frac{0.5}{100}$

Cross multiply to solve for x

1. 60 x 45 = 2700
2700/100 = 27

2. 8 x 100 = 800
800/0.5 = 1600
(Tip: dividing by 0.5 is the same as multiplying by 2)

The answers are
1. 27
And
2. 1600

Hope this helps! :)

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3 years ago