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astraxan [27]
2 years ago
9

What do I do in this question

Mathematics
1 answer:
lianna [129]2 years ago
5 0

Step-by-step explanation:

X × 3 + 4 = 22

X × 3 = 22 - 4

X × 3 = 18

X = 18 /3

X = 6

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What is the solution to the system of equations?
Mashcka [7]
Answer: (-2, 5/3)

explanation: since you are given x = -2, just plug that into the equation and solve.
8 0
2 years ago
Find the perimeter of a rectangle with a length of 6x+3 and a width of -2x-5.
blsea [12.9K]
The simple way of calculating a perimeter is to add all of the sides.
For a rectangle this would equal 2 x length + 2 x width
P = 2(6x + 3) + 2(-2x - 5)
= 12x + 6 - 4x - 10
= 8x - 4

At a higher level both the length and width must be greater than zero (= zero is a trivial rectangle)
6x + 3 > 0
6x > -3
x > -0.5

-2x - 5 > 0
2x + 5 < 0 (multiplying by -1 reverses the inequality)
2x < -5
x < -2.5

This rectangle cannot exist as x cannot be < -2.5 and > -0.5 at the same time!
8 0
3 years ago
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3x^2 y^7 • 5y^8 x^4<br> someone help<br> plz
ale4655 [162]

Answer:

15x^6y^15

Other:

Brainliest? Thanks!

5 0
3 years ago
Five angles of a hexagon measures 119, 129,104,139 and 95 degrees. What is the measure of the sixth angle?
Kisachek [45]

Answer:

x = 134

Step-by-step explanation:

Given that,

Five angles of a hexagon measures 119, 129,104,139 and 95 degrees.

We know that,

The sum of interior angles of a hexagon must equal 720 degrees.

So,

119+129+104+139 +95+x = 720

Where

x is the sixth angle

So,

586+x=720

x = 720-586

x = 134

So, the sixth angle is equal to 134.

5 0
2 years ago
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Luba_88 [7]

Answer: 60 mph.

(486+316+638)/24

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Step-by-step explanation:

8 0
3 years ago
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