2 years ago

Please help me with this

Mathematics

2 answers:

masha68 [24]2 years ago

7 0

Answer:

Step-by-step explanation:

10x-11+3x-2+3x+1=180

16x-12=180

16x=192

x=12

Luba_88 [7]2 years ago

5 0

Answer:

Step-by-step explanation:

The sum of three angles is 180°

(3x + 1) + (3x-2) + (10x -11) = 180°

16x -12 = 180

16x = 192

x = 12

You might be interested in

The scale factor of the dimensions of two similar wood floors is 5 : 3. It costs $144 to refinish the smaller wood floor. At t

Eva8 [605]

Answer: 240

Step-by-step explanation:

144/3 = 48

5x48= 240

6 0

3 years ago

Is the proportion direct or indirect? Why?

olasank [31]

Answer:

When two quantities increase or decrease together they are said to be directly. proportional

6 0

3 years ago

Express with radical signs instead of fractional exponents. Rationalize the denominator.

CaHeK987 [17]

$x^{\frac{1}{2}} = \sqrt[2]{x}$ and $3^{-\frac{1}{2}} = \frac{1}{3^{\frac{1}{2}} } = \frac{1}{\sqrt[2]{3}}$ so

$3^{-\frac{1}{2}} x^{\frac{1}{2}} = \frac{1}{\sqrt{3}} \cdot \sqrt{x} = \frac{\sqrt{x}}{\sqrt{3}}$

and you rationalize denominator by multiplying numerator and denominatr by $\sqrt{3}$ so that gives--

$\frac{\sqrt{x}}{\sqrt{3}} \cdot \frac{\sqrt{3}}{\sqrt{3}} = \frac{\sqrt{3x}}{3}$

Your answer is $\frac{\sqrt{3x}}{3}$

5 0

3 years ago

Need to learn how to do beginner's algebra

maks197457 [2]

I am doing this for points so i can catch up to my brother who is an expert

8 0

3 years ago

Read 2 more answers

The original price of a picnic table is $77.80 the sale is 40% off. What is the sale price?

Ivenika [448]

Answer:

46.68

Step-by-step explanation:

5 0

3 years ago