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Greeley [361]
3 years ago
13

The sum of five times a number and 6 more than the number is the same as the difference between -18 and twice the number. What i

s the number?
Mathematics
2 answers:
nalin [4]3 years ago
5 0
5x + (6+x) = -18 - x
6x + 6 = -18 - x
6x + x = -18 - 6 
7x = -24
x = -24/7 
goblinko [34]3 years ago
4 0
N = -3
5n + n + 6 = -18 - 2n
6n + 6 = -18 - 2n
-6 to both sides
6n = -24 - 2n
+2n to both sides
8n = -24
divide 8 to both sides
n = -3

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a park is 4 times as long as it is wide. if the distance around the park is 12.5 kilometers, what is the area of the park?
blsea [12.9K]
So, first, what are the two sides?

let's call then x and y

we know that 2(x+y)=12.5 (that's the distance around)

so that means that x+y=6.25 (I just divided both by 2)

now, x=4y (from "4 times as long as it is wide")

so we can substitute:

x+4x=6.25

5x=6.25

x=1.25

so one side, is 1.25 and the other will be 1.25*4=5

and for the area we multiply the two:

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3 years ago
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ASAP IM BEING TIME PLEASE!!
andre [41]

x° = 14°, y° = 14°; Use vertical and supplementary angles.

Step-by-step explanation:

The image of the answer is attached below.

In the given image two lines are parallel with transversal.

(9x + 12)° and ∠1 are vertically opposite angles.

Vertically opposite angles are equal.

∠1 = (9x + 12)°

Consecutive interior angles are supplementary.

(9x + 12)° + 3x° = 180°

⇒ 12x° = 168°

⇒ x° = 14°

Sum of the adjacent angles in a line are supplementary.

3x° + (4y – 10)° = 180°

⇒ 3(14)° + 4y° – 10° = 180°

⇒ 4y° = 148°

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Hence, x° = 14°, y° = 14°; Use vertical and supplementary angles.

6 0
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egoroff_w [7]

I will assume you want it in the form of y>mx+b

0.5x-2y>3

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4 0
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alexandr402 [8]

Answer: 3/4

Step-by-step explanation:

Graph the line using the slope and y-intercept, or two points.

Slope: 3/4

HOPE THIS HELPS :)

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dlinn [17]
C= 2 \pi *R

C= 2 \pi *2,5

C= 5 \pi
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3 years ago
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