Answer:
it is -25/18
Step-by-step explanation:
Start by calculating minutes until 4:00. So, from 3:16 to 3:20, there is 4 minutes, then from 3:20 to 4:00 there is 40 minutes. 44 minutes total. Then, from 4:00 to 6:00 there is 2 hours. The total time he is at the party is 2 hours and 44 minutes.
% means 'parts out of 100' so
25%=25/100
is 12 is 25 parts out of 100 of a number
so 12=(25/100)x
25/100 simplifies to 1/4
or if 12=(1/4)x
we multiply both sides by 4 and get
48=1x
Let us assume the number = x
Then
(25/100) * x = 41
25x = 4100
x = 4100/25
= 164
so the unknown number comes out to be 64, This is one of the simplest way to clearly get to the solution that is required. I hope the procedure is clear enough for you to understand. Only while deducing the result, be careful about the calculation part.In future you can always use this procedure for finding the solutions to similar problems.
Answer:
x=70
Step-by-step explanation:
45+2x-5=180
40+2x=180
2x=140
x=70
