ramibendavid2006 ramibendavid2006
  • 23-02-2020
  • Mathematics
contestada

what is the value of k?
4/5 k - 1/10 k = 1/2 k +1

Respuesta :

adebayodeborah8
adebayodeborah8 adebayodeborah8
  • 23-02-2020

Answer:

what is the value of k?

4/5 k - 1/10 k = 1/2 k +1

the answer is k = 5

Step-by-step explanation:

from the question  what is the value of k?

4/5 k - 1/10 k = 1/2 k +1

by rearranging, we have;

4k/5 - k/10 =k  + 1/ 2

finding the lcm of the RHS  which is 10

2(4k) - k/10 = k+ 1/2

8k-k/ 10 = k + 1 /2

finding the lcm of the R

LHS  which is 2

we have

7k/10 = k + 2/2

by cross multiplying

14k = 10k + 20

collect the lie terms

14k - 10k = 20

4k = 20

divide both sides by 4

k = 5

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