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Levart [38]
3 years ago
12

Plz help me get the right answer to these

Mathematics
2 answers:
taurus [48]3 years ago
6 0

Answer:

<h2>x = -20</h2>

Step-by-step explanation:

3+\dfrac{1}{5}x=-1\qquad\text{subtract 3 from both sides}\\\\\dfrac{1}{5}x=-4\qquad\text{mulatiply both sides by 5}\\\\5\!\!\!\!\diagup^1\cdot\dfrac{1}{5\!\!\!\!\diagup_1}x=(5)(-4)\\\\x=-20

const2013 [10]3 years ago
5 0

Equation: 3+1/5 x=-1

Step 1. You need to simplify both sides of the equation.

1 /5  x+3=−1

Step 2: Subtract 3 from both sides of the equation.

1 /5  x+3−3=−1−3

1 /5  x=−4

Step 3: Multiply both sides of the problem by 5.

5 x ( 1 /5  x)=(5) x (−4)

x=−20

Answer: x=-20

Hope I could help!

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Pls help will give brainliest answer and 5star
Ipatiy [6.2K]

1. Which polygon or polygons are regular?

A regular polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length).

Therefore your answer is:

A. equilateral triangle

C. square


2. Which polygon is always irregular?

traingle - NOT (equilateral triangle)

trapezoid - YES

square - NOT

hexagon - NOT (regular hexagon)

6 0
3 years ago
Find the perimeter of the figure. I’ll mark brainliest if correct
koban [17]

Answer:

66 ft.

Step-by-step explanation:

Add 9+9+9+9+30 and that equals 66.

4 0
2 years ago
Read 2 more answers
The length of a rectangle is measured as 370mm correct to 2 significant figures.
olga nikolaevna [1]

Answer:

UB: 375

Step-by-step explanation:

370mm to 2 sig figs..

UB: 375

LB:365

Please rate me 5 stars and thank me :)

5 0
3 years ago
Find the length of CA to the nearest tenth of a foot
hoa [83]

Answer:

CA ≈ 3.1 ft

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan40° = \frac{opposite}{adjacent} = \frac{BC}{CA} = \frac{2.6}{CA} ( multiply both sides by CA )

CA × tan40° = 2.6 ( divide both sides by tan40° )

CA = \frac{2.6}{tan40} ≈ 3.1 ft ( to the nearest tenth )

3 0
3 years ago
I need to find and write the equation for the problem.
Julli [10]
0.8p - 50 < = 150
0.8p < = 150 + 50
0.8p < = 200
p < = 200/0.8
p < = 250

the reason I set it up this way is because when it is 20% off, u r actually paying 80% of the original price (p)....80% of the original price is written as 0.8p...then u subtract ur 50 dollar discount coupon...- 50.....and if all she can spend is 150....it would be less then or equal to 150. So the most she can spend on the phone is 250

7 0
2 years ago
Read 2 more answers
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