anonymous
  • anonymous
The triangle on the left has a perimeter of 14, the triangle on the right has a perimeter of 21. What are x and y? Show your steps. I could sit here and figure it out by guessing and substituting, but I'm assuming there is a formula to this, so help?
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
1 Attachment
jim_thompson5910
  • jim_thompson5910
The left triangle has a perimeter of 14, so x+y+y = 14 x+2y = 14 solve for x to get x = -2y + 14
jim_thompson5910
  • jim_thompson5910
the triangle on the right has a perimeter of 21, so 3x+(5/4)y+(5/4)y = 21 12x+5y+5y = 84 ... multiply everything by the LCD 4 to clear out the fractions 12x+10y = 84 12(-2y+14) + 10y = 84 ... plug in x = -2y + 14 Now solve for y

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
y = 6
anonymous
  • anonymous
Do I plug that in back at the same equation where I plugged in the other, then solve for x?
jim_thompson5910
  • jim_thompson5910
yes, you plug it into x = -2y + 14 to find x
anonymous
  • anonymous
Thank you so much I've been working at this for hours!!

Looking for something else?

Not the answer you are looking for? Search for more explanations.