3 years ago

Select all equations that have no solution

Mathematics

2 answers:

Eddi Din [679]3 years ago

8 0

D and C do not have answer s

My name is Ann [436]3 years ago

6 0

Answer:

D and C

Step-by-step explanation:

hope this he p s ya

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Which of the following points is a solution to the system of equations x - y = 1 and -x + 3y = - 7?

kiruha [24]

Answer:

(-2,-3)

Step-by-step explanation:

Put the equations over each other.

$\binom{x - y = 1}{ - x + 3y = - 7 }$

Subtract the x values.

$\binom{ - y = 1}{3y = - 7}$

Subtract on both sides.

$2y = - 6$

Divide on both sides.

$y = - 3$

Insert the y value into one of the equations.

$x - ( - 3) = 1$

Get rid of the parenthesis.

$x + 3 = 1$

Subtract on both sides.

$x = - 2$

You could also individually plug in each solution into both equations to see if they are true.

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2 years ago

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Norma-Jean [14]

Answer:

Combination; number of ways = 21

Step-by-step explanation:

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olga55 [171]

30% increase thats the answer

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4 years ago

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Prove why 0.87 recurring is equal to the fraction 87/99 (Ps both the 8 and the 7 are recurring)

kakasveta [241]

0.87
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-792
780
-693
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Since it is now 87 again, the process repeats, yielding 0.87 recurring

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4 years ago

The graph represents how much money Emma makes selling bracelets. The table shows how much Jack makes selling comic books. Which

Lilit [14]

Answer:

Bracelets are the same price as the comic books

Step-by-step explanation:

I just did the iready lol

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