Seudónimo Seudónimo
  • 01-11-2018
  • Mathematics
contestada

the perimeter of th triangle shown is 32ft.
what is the value of x?
12 1/4 + 6 1/3 +x
A.13 5/12
B.13 5/7
C.14 5/12
D.14 5/7

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 01-11-2018

32 = 12 1/4 + 6 1/3 +x

get a common denominator for the fraction, 12

32 =  12 (1/4 * 3/3) + 6 1/3*4/4 + x

32 = 12 3/12 + 6 4/12 + x

add

32 = 18 7 /12 + x

subtract 18 7/ 12 from each side

32 - 18 7/12 = x

borrow from 32

31 12/12 - 18 7/12 = x

13 5/12 =x

Choice A


Answer Link

Otras preguntas

What percent of 300 is 36?
what must happen before chemical reaction can begin
I'm really lost on this problem
after 3/4 of a minute a sloth has moved just 3/8 of a foot. what is the sloths speed on feet per minute.
I need some help plz
what lake and dam is approximately 50 miles east of mason
how were the social classes of sumer organized ??
What is the control center of the bacteria cell
I think I got the answer but I'm not sure. Help?
how old am i if 200 reduced by 2 times my age is 16