Get expert insights and community-driven knowledge on IDNLearn.com. Get prompt and accurate answers to your questions from our community of knowledgeable experts.

Please help me whit this question

Please Help Me Whit This Question class=

Sagot :

Answer:

45

Step-by-step explanation:

1. All angles in a triangle add up to 180°, so that means 30° + (2x + 10)° + 50° = 180.

2. With the equation we just formed, let's solve for x.

Step 1: Simplify both sides of the equation.

  • [tex]30 + (2x + 10) + 50 = 180[/tex]
  • [tex](2x) + (30+10+50) = 180[/tex]
  • [tex]2x + 90 = 180[/tex]

Step 2: Subtract 90 from both sides.

  • [tex]2x + 90 - 90 = 180 - 90[/tex]
  • [tex]2x = 90[/tex]

Step 3: Divide both sides by 2.

  • [tex]\frac{2x}{2} = \frac{90}{2}[/tex]
  • [tex]x = 45[/tex]

3. Now that we got the value of x, let's test it to see if it really is the correct answer.

  • [tex]30 + (2*45+10) + 50 = 180[/tex]
  • [tex]30 + (90 +10) + 50 = 180[/tex]
  • [tex]30 + 100 + 50 = 180[/tex]
  • [tex]130 + 50 =180[/tex]
  • [tex]180 = 180[/tex]

Nice! This means that our answer is correct.

Therefore, x = 45.