mollycorrine mollycorrine

15-07-2017
Mathematics

contestada

the sum of three numbers is 85. the second number is 5 times more than the first. the third number is 2 time the first. what are the numbers?

Respuesta :

texaschic101 texaschic101

15-07-2017

x + y + z = 85
y = x + 5
z = 2x

x + (x + 5) + 2x = 85
4x + 5 = 85
4x = 85 - 5
4x = 80
x = 80/4
x = 20

x + 5 = 20 + 5 = 25
2x = 2(20) = 40

ur numbers are : 20,25,and 40

Answer Link

Otras preguntas

What was important about Charles Martel's victory at the Battle of Tours

56 out of 128 students went on a trip during vacations what percent of students went on trips

TICKETS: All you can ride: $25 7 tickets for $5 a. Write an equation in slope intercept form for the total cost of any number of tickets at 7 tickets for $5. b.

Which characteristic do ferns have that mosses do not?

why is 0.7 greater than 7%?

Moving through trophic levels _______. a. energy decreases b. entropy increases c. biomass decreases d. all of the above

What does 12(2x3-.5)+10

According to astronomers, what is a "light year"

every container of fruit salad contains 1/3 of an apple. how many whole apples are there in 6 containers of fruit salad

Which of the following describes Tammany Hall?