Alissa7yafaite Alissa7yafaite
  • 15-03-2017
  • Mathematics
contestada

Three times the larger number of two numbers is equal to four times the smaller. the sum of the numbers is 21. find the numbers

Respuesta :

rarrininger
rarrininger rarrininger
  • 15-03-2017
x=larger number
y=smaller number

3x = 4y
x+y=21

3x=4y
3x÷3= 4y÷3
x = 4/3y

x+y=21
4/3y+y=21
1 4/3y=21
1 4/3y ÷ 1 4/3=21 ÷ 1 4/3
y = 9

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

Check
3x =4y
3(12) = 4(9)
36=36
Answer Link

Otras preguntas

find the x-intercept of the parabola with vertex (6,27) and y-intercept (0,-81)
Emily needs to buy fabric to make curtain panels for her windows. Each panel will be 4 feet long and 1/2 foot wide. Each piece of fabric that she can buy is 4 f
At what location in a circuit is the electrical potential energy the greatest
Describe a time when you felt antagonized or were responsible for antagonizing someone yourself.
Senator Jon Tester of Montana was reelected in 2012. If he decides to run again when his current term expires, in what year will the election occur?
what is a transfer of food goods and disease between the old new worlds columbian
Which of the following best defines civil service? A. The body of government officials (including elected officials and judges) selected to help run the governm
what happens at a hot spot?
Which of the following can be used to discover an authors purpose? I. details in the story II. historical context III. publishers life history a. I, II, and III
write a compound inequality that represents the evelation range for each type of plant life