All categories

4 years ago

What is the angle x of a triangle? Solve with this equation. 60+x+100= 180

Mathematics

1 answer:

Bogdan [553]4 years ago

3 0

Answer:

Step-by-step explanation:

60+x+100=180 is the equation we are asked to solve.

Using commutative property of addition you can rewrite as:

x+60+100=180

Using associative property of addition you can rewrite as:

x+(60+100)=180

Combine like terms/simplify:

x+(160)=180

x+160=180

Use subtraction property of equality to rewrite as:

x+160-160=180-160

Simplify both sides:

x+0=20

Apply the additive identity property:

x=20

So x=20.

Check.

60+x+100=180 with x=20:

60+20+100=180

80+100=180

180=180

The last line I have here is true so x=20 has been verified as the solution.

You might be interested in

Select each transformation that carries a square onto itself. please i need help :(

stiv31 [10]

Need points baggage haha ha she s s s s s s when’s she sub dbhd she s sus did

5 0

3 years ago

Read 2 more answers

Earth's radius is approximately 3960 miles. What is the approximate surface area of

den301095 [7]

Answer:

196.9 million mi^2

Step-by-step explanation:

4 0

3 years ago

In this line of circles, the ratio of red circles to blue circles is 1:3 How many more circles would need to be added to make th

zaharov [31]

Answer:

The number of red circles to be added would be equal to 8 times the original amount of red circles

Step-by-step explanation:

Let

x ----> the number of red circles

y ----> the number of blue circles

Originally

$\frac{x}{y}=\frac{1}{3}$

$y=3x$ ----> equation A

How many more circles would need to be added to make the ratio of red to blue 3:1

Let

n ----> the number of additional red circles

$\frac{x+n}{y}=\frac{3}{1}$ ----> equation B

substitute equation A in equation B

$\frac{x+n}{3x}=\frac{3}{1}$

solve for n

$x+n=9x\\n=9x-x\\n=8x$

therefore

The number of red circles to be added would be equal to 8 times the original amount of red circles

5 0

3 years ago

Please answer this please

andrew-mc [135]

Answer: A

Step-by-step explanation: Range is the distance between one point to the next. That would make A the correct answer.

7 0

3 years ago

4. A store had 86 DVDs and 52 CDs. When the equal number of DVDs and CDs were sold,

11Alexandr11 [23.1K]

Answer:

51 DVDs

Step-by-step explanation:

Let the number of DVDs and CDs sold be x each.

Initial

Number of DVDs= 86

Number of CDs= 52

After selling

Number of DVDs= 86 -x

Number of CDs= 52 -x

Given that there are 3 times as many DVDs than CDs left,

86 -x= 3(52 -x)

Expand:

86 -x= 156 -3x

Bring x terms to 1 side, constant to the other:

3x -x= 156 -86

Simplify:

2x= 70

Divide both sides by 2:

x= 35

Amount of DVDs left

= 86 -x

= 86 -35

= 51

3 0

3 years ago

What is the angle x of a triangle? Solve with this equation. 60+x+100= 180​

What is the angle x of a triangle? Solve with this equation. 60+x+100= 180