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3 years ago

Can u help me please ?

Mathematics

1 answer:

harina [27]3 years ago

6 0

Check the attached file and let me know what you think.

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Find the value of the variable y, where the sum of the fractions 6/(y+1) and y/(y-2) is equal to their product.

Blizzard [7]

Answer:

The answer is

$y = 3$

$y = - 4$

Step-by-step explanation:

We must find a solution where

$\frac{6}{y + 1} + \frac{y}{y - 2} = \frac{6}{y + 1} \times \frac{y}{y - 2}$

Consider the Left Side:

First, to add fraction multiply each fraction on the left by it corresponding denomiator and we should get

$\frac{6}{y + 1} \times \frac{y - 2}{y - 2} + \frac{y}{y - 2} \times \frac{y + 1}{y + 1}$

Which equals

$\frac{6y - 12}{(y -2) (y + 1)} + \frac{ {y}^{2} + y }{(y - 2)(y + 1)}$

Add the fractions

$\frac{y {}^{2} + 7y - 12 }{(y - 2)(y + 1)} = \frac{6}{y + 1} \times \frac{y}{y - 2}$

Simplify the right side by multiplying the fraction

$\frac{6y}{(y + 1)(y + 2)}$

Set both fractions equal to each other

$\frac{6y}{(y + 1)(y - 2)} = \frac{ {y}^{2} + 7y - 12}{(y + 1)(y - 2)}$

Since the denomiator are equal, we must set the numerator equal to each other

$6y = {y}^{2} + 7y - 12$

$= {y}^{2} + y - 12$

$(y + 4)(y - 3)$

$y = - 4$

$y = 3$

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3 years ago

Read 2 more answers

Your bank account balance is $32.00. You make the following withdrawals, in the following order: $15.00, $7.41, $35.79, and $0.5

aksik [14]

Answer:

−58.73

Step-by-step explanation:

32−(15.53+7.41+35.79+32)

=−58.73

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3 years ago

Information about the students at Jackson High School is shown in the table.

SSSSS [86.1K]

Answer:

A or Out of the 352 eleventh graders at the school, 173 of them are girls

Step-by-step explanation:

cause i did it and your welcome to all the poor souls in

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PLSSS HELP ME!!!!!!!!!!! I WILL MARK U!!!!!

max2010maxim [7]

Answer:

Step-by-step explanation:

you're using the pythagorean theorem

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3 years ago

Assume that cost is 2 times more important than reputation and reputation is 3 times more important than compatibility with exis

dusya [7]

Let the weightage of Ease of Use be x
Ease of Use = x

Compatibility is 5 times more than ease of use:
Compatibility = 5x

Reputation is 3 times more important than compatibility:
Reputation = 3(5x)
Reputation = 15x

Cost is 2 times more important than reputation:
Cost = 2(15x)
Cost = 30x

So the weightage are:
Ease of Use : 1
Compatibility : 5
Reputation :15
Cost : 30

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3 years ago