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Natalija [7]
3 years ago
12

Solve by substitution. 5x + 4y = -14 y = -7x - 15

Mathematics
1 answer:
ki77a [65]3 years ago
5 0

Answer:

(-2,-1)

Step-by-step explanation:

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Is p= -1 a solution to the equation 6(p-4)-30p ?
kirill [66]

Answer:

Yes

Step-by-step explanation:

6(-1-4)-30(-1) can be simplified into 6(-5)+30 which becomes -30+30, and then 0.

3 0
3 years ago
Will mark brainliest please help me Explain step by step how to find the equation of a line that goes through the points ( 7, 2
vagabundo [1.1K]

Answer:

Step-by-step explanation:

Put the ordered pairs into the slope formula x=y2-y1/x2-x1 then you will get your slope of the line. once you have your slope pick an ordered pair and put it in point slope y-y1=m(x-x1) distribute and you will get your answer.

5 0
2 years ago
Read 2 more answers
Help please!<br><br> A.<br><br><br> B.<br><br><br> C.<br><br><br> D.
elixir [45]

Answer:

D.

b = 175; which is the initial # of pages to start

Step-by-step explanation:

you can find the slope to find b or y-intercept (x=0) for equation

y=mx+b

to find m = (y2-y1)/(x2-x1)

(x1,y1) = (9, 100)

(x2, y2) = (15, 50)

m = (50-100) / (15-9) = -50/6 = -25/3

let use point (15, 50)

y=mx+b

50 = -25/3*x + b

50 = (-25/3)*(15) + b

50 = -125 + b

b = 175; which is the initial # of pages to start

3 0
2 years ago
What is the equation, in slope-intercept form, of the line parallel to y = 5x+2 that passes through the point (-2, 1)?
o-na [289]
Y=5x+11 using the point-slope formula and simplifying
4 0
2 years ago
Pete dad usually deposits $25 into his bank account every week.for the next weeks he wants to deposit more than the usually $25
Burka [1]

Answer:

The answer is "8(25+x)>500;x>37.50".

Step-by-step explanation:

Please find the complete question in the attached file.

 \to 8(25+x)>500\\\\\to 200 +8x>500\\\\\to 8x> 300\\\\\to x> \frac{300}{8}\\\\\to x> 37.50

That's why above given choice is correct.

3 0
3 years ago
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