sberi1972 sberi1972
  • 04-07-2018
  • Mathematics
contestada

The range of all real numbers x such that 2x-5 <7 and 4x+10>6 is

Respuesta :

DeanR
DeanR DeanR
  • 04-07-2018

Simultaneous inequalities.

The first one gives

2x -5 < 7

2x < 5+7 = 12

x < 6

The second one

4x + 10 > 6

4x > 6 - 10 = -4

x > -1

Note we always divided by positive numbers, so the sense of the inequaltity never changed.

Our final answer is

-1 < x < 6


Answer Link

Otras preguntas

How do you covert oz to pt
Identify the Gerund phrase in the sentence below. Making coffee may not be as easy as you think.
Which of the following is one way that a few firms can gain some control over their market? secretly cooperate with one another bribe government officials to ha
In which of the following ways do the national media deliver news to the general public? a.Newspapers and magazines b.Television and radio programming c.Website
What is the best estimate for the length of a bike
The 1689 document that guaranteed English citizens the right to petition the monarch is known as? A. The petition of right B. the manga carta C. English Bill o
most followers live in East and Southeast Asia A. Hinduism B. Buddhism C. Christianity D. Islam E. Confucianism
cuando estás muy cansado (a) por las mañanas , ? qué haces
What is la patente mean in a sentence
James, duke of york, gave what lan to John Berkeley and George Carteret?