03-03-2016
Mathematics

contestada

What is the sum of two numbers is 30. The sum of the greater number and three times lesser number is 53

Respuesta :

tomzy416 tomzy416

03-03-2016

x+y=30....1
x+3y=53.......2
from equ 1
x=30-y......3
sub in equ 2
30-y+3y=53
30+2y=53
2y=53-30
2y=23
y=23/2 =11.5
sub in equ 3
x=30-11.5
x=18.5

Answer Link

Otras preguntas

What is the purpose of the pericardial sac that surrounds the heart in mammals

which phrase best describes the long-term impact of the gi revolt? A. reduced the power of the Arkansas political machine. B. put an end to gambling in hot sp

please please help me out......i swear I'll help u out

Find a a. 4 b. 6 c. 9

Find the volume of a cylinder that has a diameter of 6 and a height of 9

doris tiene en su cartera billetes de $10 y de $20 . si en total tiene 25 billetes y $330 ¿cuantos billetes tiene de cada tipo?

What is the domain of a sine function?

The large surface area in the gut directly facilitates _____.

which would not be a reaction of someone who has been drinking alcohol

Solve the quadratic equation for x. What is one of the roots? (x + 6)2 = 49 A) −13 B) −6 C) −7 D) −1