mwdelmonte mwdelmonte
  • 10-07-2020
  • Mathematics
contestada

3(0.7z+2.8)=7(1.5z+7.2)

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 10-07-2020

Answer:

z = -5

Step-by-step explanation:

3(0.7z + 2.8) = 7(1.5z + 7.2)

2.1z + 8.4 = 10.5z + 50.4

2.1z - 10.5z = 50.4 - 8.4

-8.4z = 42

z = 42/(-8.4)

z = -5

Answer Link

Otras preguntas

6y - 5x = 5 and x= 2y + 7
Which city first celebrated independence day
When is a zero not significant?
Compare sympathetic vs parasympathetic nervous system
Why do we have checks and balances?
Find the area. A. 19 ft² B. 30 ft² C. 31 ft² D. 84 ft²
Just help me with number 4, 5, 6, 7, 8,and 9
What’s 18/20 simplified
What is a corporation? A. A foreign person who wants to set up a business in the United States B. A government group that oversees and sets rules for companies
HELP!! Select the correct answer. What is the focus point of a parabola with this equation?