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s344n2d4d5 [400]
3 years ago
10

Write an equation of the line

Mathematics
1 answer:
liberstina [14]3 years ago
6 0

Answer:

y=-6x+8

Step-by-step explanation:

Slope-intercept form is y=mx+b, where m is the slope and b is the y intercept.

We know a point (2,-4) and a slope -6.

We can subtsitute what we know into the equation above, to find what the y intercept is, since the line will pass through the point given.

-4=-6(2)+b

multiply

-4=-12+b

add 12 to both sides

8=b

the y intercept is (0,8)

Now we know what b is, so we know what the full equation is:

y=-6x+8

hope this helps!

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-7x-3=12<br><br> Solve this please and show me how you got it
Natali [406]

Answer:

x = 15/7

Step-by-step explanation:

-7x - 3 = 12

    -7x = 12 + 3

    -7x = 15

       x = 15/7

Hope this helps :) Pls mark Brainliest!

7 0
3 years ago
Read 2 more answers
Length of a rectangle is 4 inches less than twice it’s width of the perimeter is 70 inches what’s the dimensions?
Vedmedyk [2.9K]
W= width
L= length= 2W-4
Perimeter= 70

FIND WIDTH:
P= 2(L + W)
P= 2L + 2W
substitute 2W-4 for L
70= 2(2W-4) + 2W
multiply 2 by all in parentheses
70= (2*2W) + (2*-4) + 2W
70= 4W - 8 + 2W
combine like terms
70= 6W - 8
add 8 to both sides
78= 6W
divide both sides by 6
13= W

FIND LENGTH:
substitute w=13 to find width
L= 2W-4
L= 2(13)-4
L= 26-4
L= 22

CHECK:
P= 2(L + W)
70= 2(22 + 13)
70= (2*22) + 2(13)
70= 44 + 26
70= 70

ANSWER:
length= 22 inches
width= 13 inches

Hope this helps! :)
3 0
3 years ago
The population of a city grew from 43,209 to
QveST [7]

Answer:

5 percent or 5.7349percent

divide 43209 by 45687 and get 1.0573491 subtract one

and get 0.0573491 make into a percentage 5.7percent depending on where you need to round.

8 0
3 years ago
Jerry bought 9 gallons of gasoline for “D” dollars per gallon. Steve purchased the same amount of gasoline, but at a price that
katrin2010 [14]

Answer: 1.17

Step-by-step explanation: multiply 9 x 0.13

6 0
4 years ago
Can u show 24 divided 4 with one rectangle
ryzh [129]
This will be the answer
Have a great day

7 0
3 years ago
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