3 years ago

What could be the value of x?

Mathematics

2 answers:

Phantasy [73]3 years ago

5 0

Its either x=2 or no solution let me work out the problem.

stich3 [128]3 years ago

5 0

2,-5 so C. or the 3rd answer.

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Does anyone get this??<br> Pls help!!

Molodets [167]

Answer:no

Step-by-step explanation:

5 0

3 years ago

B = -1-7ab=−1−7a<br> I need help with this question

Elan Coil [88]

b = -1-7ab=−1−7a

Can be rewritten to be easier to understand.

$b = -1-7ab\\-1 -7a = -1-7ab$

In addition you can say the following equation is valid due to the way your problem was given to you.

$b = -1-7a$

Of course, you can simplify equation 2

$-1-7a = -1-7ab\\-7a = -7ab\\a = ab\\1 = b\\b = 1\\$

This ends up giving you b so you don't end up having to do any substitution in order to find b. Now substitute the value for b into either equation. I'm choosing the third because it's easiest.

$b = -1-7a$

$1 = -1 -7a\\2 = -7a\\-\frac{2}{7} = a\\a = -\frac{2}{7}$

And there you go :)

8 0

3 years ago

What percent of 240 is 180?

leonid [27]

You would put x over a hundred because you don't know what percent it is then you would put 180 over 240 because the other part of the prapotion is is over of. then you would cross multiply and get 7.5

5 0

3 years ago

Read 2 more answers

Need help with questions 18,20, and 22 please and thank you

Tatiana [17]

Answer:

18. x² + x - 4

20. $\frac{x^{2} +2x-3}{x+1}$ or $x + 1 - \frac{4}{x+1}$