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m_a_m_a [10]
3 years ago
6

Solve: - 4x +3<-9 idk tbh

Mathematics
2 answers:
blsea [12.9K]3 years ago
8 0

Answer:

x>3

Step-by-step explanation:

Tcecarenko [31]3 years ago
4 0

Answer:

x > 3

Step-by-step explanation:

Luckily for our brains, inequalities work very similar to equations when solving. Let's get on it.

First, we need to subtract 3 from both sides to isolate the -4x (this means we can then divide to get x by itself).

Which leaves us with -4x.

Now we need to divide both sides by -4. Here's the thing - with inequalities, when we divide both sides by a negative, the sign flips! So after doing this simplification, our inequality looks like this: x > 3

And there's your answer. :)

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How many solutions does this linear system have?
Tanya [424]

Answer:

B (2.5, 0)

Step-by-step explanation:

2x - y = 5 (multiply all by 4)

8x- 4y = 20

-8x - 4y = - 20

eliminate the 4y

8x- 4y = 20

-8x - 4y = - 20

-------------------- –

16x = 40

x = 40/16 = 2.5

now we substitute x with 2.5

2x - y = 5

2(2.5) - y = 5

y = 0

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3 years ago
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Geometry, please answer question ASAP
Pepsi [2]

Answer:

Figures A,D are polygons.

Reason:

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7 0
3 years ago
Here is a rectangle which has a width of x cm. x cm
miskamm [114]

Answer:

278.25 cm2

Step-by-step explanation:

If the width of the rectangle is x (cm), as the length is 8cm longer, so that the length of the rectangle is: x + 8 (cm).

In the attached image, we can see the length of each side. Total length of the sides are 90 cm.

=> (x + x + 8) + x + 8 + (x+8) + (x + x + 8) + x + 8 + (x +8) = 90

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=> x =42/8 = 5.25 (cm)

=> The width of the rectangle is 5.25cm

=> The length of the rectangle is: 5.25 + 8 = 13.25 cm

=> The area of one rectangle is: Length x Width = 5.25 x 13.25 = 69.5625 cm2

As the 8-sided shape is made from 4 rectangles, so that:

Area of 8 sided shape = 4 x Area of the rectangle = 4 x 69.5625 = 278.25 cm2

6 0
3 years ago
if a turtle can move 1/7 of a mile every hour, then how many hours would it take for a turtle to go 5 miles?
Lyrx [107]

Answer:

35 hours

Step-by-step explanation:

1 mile would be 7 hours- 7x5=35

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