nabihaaaa12
nabihaaaa12 nabihaaaa12
  • 21-08-2021
  • Mathematics
contestada

Two numbers are in the ratio 1:2. If 7 is to be added to both, then ratio changes to 3:5, find the numbers

Respuesta :

Аноним Аноним
  • 21-08-2021

Let numbers be x and 2x

ATQ

[tex]\\ \rm\longmapsto \dfrac{x+7}{2x+7}=\dfrac{3}{5}[/tex]

[tex]\\ \rm\longmapsto 5(x+7)=3(2x+7)[/tex]

[tex]\\ \rm\longmapsto 5x+35=6x+21[/tex]

[tex]\\ \rm\longmapsto 6x-5x=35-21[/tex]

[tex]\\ \rm\longmapsto x=14[/tex]

  • 2x=2(14)=28years
Answer Link

Otras preguntas

One method used to determine the volume of solids and liquids is displacement. a. True b. False
How each of the following personality types deals with interpersonal conflict: Passive/introvert and Aggressive/Bully and Assertive/extrovert
Thermal energy depends on an object’s A. mass. B. phase (sold, liquid, or gas). C. temperature. D. all of the above
Labor is a _____ used to produce goods and services. salary reference human resource
why do farmers put ammonium nitrate on their farmland?
Clusters of flowers are called _____.
What is a subordinating conjunction?
Describe the kinds of things you might find if you could explore inside the wrecked ships dining room
During the early years of the Industrial Revolution, the urban working class could afford to live in nice homes and dress well. a. True b. False
It takes arman 48 minutes to mow 4 lawns. Assuming the lawns are the same size and Arman works at the same speed, about how long will it take him to mow 7 lawns