luejialicia1
luejialicia1 luejialicia1
  • 02-03-2015
  • Mathematics
contestada

Three terms , 19-6x , 2 + 4x , 6x + 1, are in arithmetic progression .

a) Calculate the value of x .

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 02-03-2015
so therfor from 19-6x to 2+4x the diffence if the same as the diffence between 2+4x an d6x+1


so (2+4x)-(19-6x)=(6x+1)-(2+4x)
add like terms
2+4x-19+6x=6x+1-2-4x
10x-17=2x-1
add 17 to both sdies
10x-2x+16
subtract 2x form both sdies
8x=16
divide boht sdie syb 8
x=2

x=2
therfor the terms are
7, 10, 13
Answer Link

Otras preguntas

5. 4x - y = 122x + 2y = 6​
The table below shows the numbers of tickets sold at a movie theater on Friday. NUMBER OF TICKETS SOLD Day Adult Tickets Children's Tickets 1,678 976 Friday Sat
Please help thank you
Can someone answer all 3 thanks.
Read and match each country with correct tradition based on what you have learned from the lesson
Ion know what to do
1.since it is a ratio of two integers 2 over 3 is irrational... true or false.2.since it is a terminating decimal 8.32 is rational..true or false​
I’m my number both digits are even numbers the digit in the tens place is less than the number in the ones place the sum of my number is 6
What is the equations of the line that has a slope of 2 and passes through the point (6,2)
Plz help me with this question