amandarb amandarb
  • 23-09-2016
  • Mathematics
contestada

describe and correct the error in solving the equation -1.5+k=8.2
k=8.2+(-1.5)
k=6.7

Respuesta :

TSO
TSO TSO
  • 04-10-2016
-1.5 + k is the same thing as k - 1.5

and if we want to get k all by itself, we need to add 1.5 on both sides, not add -1.5

so

-1.5 + k = 8.2
-1.5 + 1.5 + k = 8.2 + 1.5
k = 8.2 + 1.5
k = 9.7
Answer Link

Otras preguntas

can you tell me what is ballet?
how many days are really in a year
Which statement best describes an igneous intrusion?     A. Magma explodes to the surface and forms a smooth outer layer of rock.B. Magma is exported to an open
A 1200 kg vehicle initially travelling at 50. km/h experiences an air resistance of 5000 N and road friction of 2200 N. The wheels deliver a force of 7500 N to
35% of what number is 17
how would I calculate the X from a known velocity when launching a ball off a table?
I am factor of 48, I am bigger than 4 square. I am smaller than 5. WHAT IS THE MYSTERY NUMBER
Easy I just don't understand math help?
Easy I just don't understand math help?
What Are the Different English Words that Don't Rhyme?