chasb2004 chasb2004

15-12-2019
Mathematics

contestada

john is 2 years more than twice as old as david. the sum of their age is 14, find the age of each child

Respuesta :

sumayyahi55 sumayyahi55

15-12-2019

Answer:

David is 4. John is 10.

Step-by-step explanation:

john=x

david=y

x+y=14

x=2y+2

(2y+2)+y=14

3y+2=14

3y=12

y=4

x+(4)=14

x=10

Answer Link

Otras preguntas

The table shows the amount of time four students practiced the trumpet one day. Which list shows the names of the students in order from the least amount of pra

What is the contribution of 5G and Edge computing to society

$15 a share. A month later, it was selling at $27 a share. What is the percent increase?

Solve for x X+59+80+50=180

To prepare for an interview, you should practice how you will introduce yourself to the hiring manager how you will leave the interview room what you memoriz

Show all work ^(+)=/ (3 points – 1 converting to same base, 1 writing the equation, 1 solving the equation)

SPANISH 1B: Unit 2 Writing Assignment 4 After watching the video about conjugating E  I Stem Changing Verbs, choose TWO E  I verbs from your vocabulary list a

b) Ustal na podstawie obliczeń, czy kąpiel w wannie o pojemności 350l wypełnionej wodą nasyconą 160 dm³ tego tlenku (d = 1,977 ) można uznać za kąpiel leczniczą

A company offers one free book download to anyone that registers. The total number of people that register can be modeled by the function f(x) = 8x³ +70x² +145x

3 Change the sentences into past simple sentences. 1 Tom looks out of the window. Tom looked out of the window.. 2 We arrive at 6.30. 3 Laura watches television