admiralhoney66 admiralhoney66

01-02-2020
Mathematics

contestada

the perimeter of a triangle is 49cm.One side is 7cm longer than another side and 5cm shorter than the third side find sides

Respuesta :

Аноним Аноним

01-02-2020

P = a + b + c = 49 cm

a = b + 7 => b = a - 7

a = c - 5 => c = a + 5

_____________________

a + (a - 7) + (a + 5) = 49

3a = 49 + 7 - 5

3a = 51

a = 17 cm

b = 17 - 7 = 10 cm

c = 17 + 5 = 22 cm

Answer Link

Otras preguntas

Mrs.Jacobsen purchased a 5-pound package of ground beef for $12.40. She decided to use 8 ounces each day for dinner recipes. What was the cost of ground beef pe

Which of the following is a symbol of Beowulf's victory over the monster Grendel? Beowulf's sword the overturned mead-benches Grendel's claw the broken hall doo

Negative 1 minus 8 equals

a joint stock company was

The Cold War was a period of history during which the Allied powers defeated Hitler. the United States and the Soviet Union fought each other. the United States

Twenty two more than four times a number is less than 82

Solve for y: -y+6+6y=9

A person throws a tennis ball 6 m/s straight up. How long does it take for it to come back to their hand?

a car's velocity changes from 32m/s to 96m/s in an 8.0-s period. what is its acceleration?

Prehistoric Indian civilizations created them • made of dirt by hundreds of workers • used for different purposes, like burying the dead or building sites for i