madelynspindler madelynspindler
  • 02-12-2017
  • Mathematics
contestada

How do you solve this problem using substitution or elimination?

Three times the larger of two numbers is equal to 4 times the smaller. The sum of the numbers is 21. Find the numbers.

Respuesta :

lesliekolleroxrkcf
lesliekolleroxrkcf lesliekolleroxrkcf
  • 03-12-2017
3x=4y
x+y=21

x = 21-y
3(21-y)=4y

63-3y=4y
63=7y
y=9

x+y=21
x+9=21
x=12

answer is (12, 9)

Answer Link

Otras preguntas

Which letters from the table represent like terms? O A and B O B and C O A and D O Band D
The phase that occurs beyond the critical point is: A. Liquid B. Solid C. Gas D. All of the above
PLS HELP ITS URGENT!!!!!!! ILL GIVE BRAINLIEST I PROMISE PLEASE IM BEGGING U HELP ME
Is 3 a factor of 20b - 10? yes no HELP ASAP
Which line most clearly creates a conflict between the protagonist and the antagonist?
On September 25, 2018 Colson Corp. sold 200,000 widgetrons to Cavanaugh Corp at $5 per unit. Half of the units were delivered on November 15, 2018, and the rema
Please answer this The topic is the perfect world
I dont know if anyone has read Pygmalion. but I really need help and would really appreciate it.
Find the value of x
Rewrite in slope intercept form x+y=3