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Dominik [7]
3 years ago
14

find the missing value so that the line passing through the points has the given slope (x,-4) and (2, 8); m=-3

Mathematics
1 answer:
Sladkaya [172]3 years ago
3 0

Answer:

The missing x would be 6

Step-by-step explanation:

To find the missing value fo x, use the slope formula and solve for the missing variable.

m(slope) = (y2 - y1)/(x2 - x1)

-3 = (8 - -4)/(2 - x)

-3 = 12/(2 - x)

Now we cross multiply to solve.

12 = -3(2 - x)

12 = -6 + 3x

18 = 3x

6 = x

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A sandwich shop is ordering apples and grapes to make chicken salad.Apples cost $2.19 per pound and grapes cost $2.60 per pound.
andrew11 [14]

Answer:

Grapes=19.51

Step-by-step explanation:

Apples=$2.19 per pound

Grapes=$2.60 per pound

Apples+Grapes=20 pounds

A+G=20

A=20-G

Equation is

PaA+PgG=35.80

2.19A+2.60G=35.80

2.19(20-G)+2.60G=35.80

43.8-2.19G+2.60G=35.80

43.8-0.41G=35.80

-0.41G=35.80-43.8

-0.41G=-8

Divide both sides by 0.41

G=19.51 pounds

Recall

A=20-G

A=20-19.51

A=0.49 pounds

8 0
3 years ago
Each side of the Pentagon Building in Washington DC is 900 feet long. What is the perimeter ?
Vika [28.1K]
The perimeter of a Pentagon is all the length of the sides added up
A pentagon is a five sided shape
so...
900+900+900+900+900
or 900*5
That is 4500.

The perimeter of the Pentagon Building in Washington DC, whose side is 900 feet long, is 4500 feet around.

Hope this helps :)
6 0
3 years ago
PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER
mash [69]

Answer:

(-6,9,-3)

Step-by-step explanation:

-3x -y +z=6

-3x-y+3z =0

x-3z =3

Multiply the second equation by -1

-1 *(-3x-y+3z) =0*-1

3x +y -3z =0

Add this to the first equation

-3x -y +z=6

3x +y -3z =0

----------------------

0 + 0 + -2z = 6

Divide by -2

-2z/-2 = 6/-2

z = 6/-2

z=-3


Take the third equation to find x

x-3z=3

x-3(-3) = 3

x+9=3

Subtract 9 from each side

x+9-9 =3-9

x=-6

Now we need to find y

3x +y -3z =0

3(-6) +y -3(-3) =0

-18 +y +9=0

-9+y =0

Add 9 to each side

-9+9+y = 0+9

y=9

(-6,9,-3)

3 0
3 years ago
Read 2 more answers
Umm can someone help? I’ll mark brainliest
aleksklad [387]

Answer:

the first is 70 and the second is 140

Step-by-step explanation:

6 0
3 years ago
Find the volume of the following solid figure. A rectangular solid has sides of 10.5 cm, 6.5 cm, and 8.5 cm. What is its volume?
Zolol [24]
580.125 cm3 is the answer.
6 0
3 years ago
Read 2 more answers
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