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4 years ago

Which ordered pair is the solution to the system of equations? {y=2x−154x+3y=−5 (5, −5) (7, −11) (4, −7) (0, 6)

Mathematics

2 answers:

pav-90 [236]4 years ago

6 0

y=2x−15

4x+3y=−5

_________

4x+3(2x-15)= -5

4x+6x-45= -5

10x=-5+45

10x= 35

X=35/10

X= 3.5 or 3 and 1/2

Now solve for y

4x+3y=−5

4(3.5)+3y= -5

12.5+3y= -5

.40+3y= -5

3y= -5-0.40

3Y= -5.40

Y= -1.80

Answer (3.5, -1.80)

Natasha_Volkova [10]4 years ago

3 0

Answer:

So that you all don't have to go and do extra work the answer is (4, -7) :)

Step-by-step explanation:

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Read 2 more answers

How to solve -27/x^15

kompoz [17]

Answer:

$\frac{-27}{x^{15}}=-\frac{27}{x^{15}}$

Step-by-step explanation:

<em>If you just want to simplify -27/x^15, it is not very difficult. Here is the simple way.</em>

<em />

Given the expression

$\frac{-27}{x^{15}}$

solving

$\frac{-27}{x^{15}}$

$\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}$

$=-\frac{27}{x^{15}}$

Therefore,

$\frac{-27}{x^{15}}=-\frac{27}{x^{15}}$

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3 years ago

This is very important, please help mee :)

Bogdan [553]

Answer:

f(-1) = 3

Step-by-step explanation:

f(-1) means the value of y at x = -1.

So what's the value of y at x = 1?

First, focus on the graph and look at x = -1.

Next, see which y-value does graph pass through when x = -1.

Looks like the graph passes y = 3 when x = -1

Thus, f(-1) = 3

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5x – 10 = 5 (x – 2)

OverLord2011 [107]

Step-by-step explanation:

$5x - 10 = 5(x - 2) \\ 5x - 10 = 5x - 10 \\x = 0 \\$

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3 years ago