jobrains2362 jobrains2362

14-02-2018
Mathematics

contestada

The sum of 3 numbers is 131. the second of three numbers is seven more than twice the first. the third number is 12 less than the first

Respuesta :

djb3p47j9a djb3p47j9a

15-02-2018

a+b+c = 131

b = 7 + 2a and c = a - 12
so a + 7+2a + a-12 = 131
then 4a -5 = 131
then 4a = 136
and a = 34....so b= 75 and c = 22....check 34+75+22=131√

Answer Link

Otras preguntas

The banning of public performances was the end of English drama. TRUE or FALSE

Which of the following represents the zeros of f(x) = 3x^3 − 10x^2 − 81x + 28? A) 7, -4, 1/3 B) 7, -4, -1/3 C) 7, 4, 1/3 D) 7, 4, -1/3

The inscription on marble gravestones become harder and hardeer to read over time. this is cause by?

What does 400=________miles equal?

Circle the common factors of 20w and 40wz. Options are 10, 20w, 10xz, 5z, 2w, z, 9w, or w. Can you please explain how you guys got this too

Stds are spread though_______ contact. a.physical b.casual c.sexual

What context in the sentences helps you to understand the meaning of infiltrated? The navy seal team successfully infiltrated the enemy command center. The mari

Ana y Claudia __________ traen. (los manteles) nos. lo. las. los

Headaches, a sore back, and strained eyes are signs that a study area needs to be more ?

the perimeter of a baseball diamond is about 360ft if you take 12 laps around the diamond what is the total distance you run