3 years ago

Please help me with this I am new to this app so i want to have a good experience on it. Thanks

Mathematics

2 answers:

mina [271]3 years ago

7 0

what do you need help on exactly?

shtirl [24]3 years ago

4 0

Your $ value is correct, but he would move three hash marks, not two!

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Plz help asap with explanation and will get the brilliant

Elina [12.6K]

3x + y = -3
-2x + y = 7
Use elimination method
Subtract both equations
5x = -10, x = -2
Plug in -2 for x (any equation)
3(-2) + y = -3
-6 + y = -3
y = 3

Solution: x = -2, y = 3
Or as a coordinate: (-2, 3)

8 0

2 years ago

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The length of a rectangle is 3 meter shorter than3 times its width.Find the length and width if the perimeter is 210 meters

Shkiper50 [21]

Answer:

length = 78 m , width = 27 m

Step-by-step explanation:

let w represent width then length l = 3w - 3

the perimeter (P) is calculated as

P = 2l + 2w = 210 , substitute values

2(3w - 3) + 2w = 210 ← distribute parenthesis and simplify left side

6w - 6 + 2w = 210

8w - 6 = 210 ( add 6 to both sides )

8w = 216 ( divide both sides by 8 )

w = 27 and l = 3(27) - 3 = 81 - 3 = 78

Then length = 78 m and width = 27 m

8 0

2 years ago

A: 1/2 inch <br> B: 1 inch <br> C: 2 inches<br> D: 1/32 inch

mote1985 [20]

The expression of the height is

$a_n=8\cdot (\frac{1}{2})^{n-1}$

the index "n" is the numbers of times that the ball is down, to n=1 the height is 8 inches, to n=2 the height is 4 inches.

An when n=5, the height is

$a_5=8\cdot (\frac{1}{2})^{5-1}=8\cdot (\frac{1}{2})^4=\frac{1}{2} =0.5$

the anwers is 0.5 inches

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3 years ago

Help plzzzzzzzzzzzzzz

Lana71 [14]

i think

SAS

:) :) :) :) :) ;) ;)

6 0

2 years ago

The ratio of 8 melons to 36 fruits

Ivenika [448]

8/36

= 2/9 after dividing by 4

Please mark as brainliest.

4 0

2 years ago

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