nehashah0912 nehashah0912
  • 01-05-2019
  • Mathematics
contestada

If x−y=80 and 3/5 = y/x , then what is the value of x?

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 01-05-2019

Answer:

x=200

Step-by-step explanation:

x−y=80

3/5 = y/x

Multiply the second equation by x

3/5 x = y/x *x

3/5 x = y

Substitute this into the first equation for y

x-y =80

x - 3/5x = 80

2/5 x = 80

Multiply each side by 5/2 to isolate x

5/2 *2/5x = 80 *5/2

x = 200

Answer Link

Otras preguntas

3 teachers for 63 students what is the ratio
How did nicknames become surnames?
Are the four main causes of the decline of Rome
Number 5555555555555
During his workout yesterday , Anthony pushed himself by lifting heavier weights. Today he is feeling good , but his muscles are sore . What principle is At Wor
Write an essay of at least 200 words that explains the significance of Orwell’s choice of a farm as the setting of his story.
How many valence electrons does holmium have?
In the grand canyon each rock layer has a matching layer on the wall across the canyon to for the layers extend in all directions which of steno's principles be
What happens if a presidential election is thrown into the house of representatives?
Use this graph of 7 to find g(7)