Answer:
55
Step-by-step explanation:
add 25 and 30 to get 55
a triangle always equals 180 so
180-55=125
y is a straight line with x which equals 180 so
180-125=55
This solution might become quite complex.
Please try to keep up with me, and I'll go slowly:
You said (x + k) = (x + k - 1) (x + k)
Divide each side by (x+k): 1 = (x + k - 1)
Add 1 to each side: 2 = (x + k )
Subtract 'k' from each side: 2 - k = x
Answer: 80 miles
Step-by-step explanation:
320miles/8hours= 40mph
40mph=xmiles/2hrs
40*2= 80 miles
I'm going to change all of the hours to 24-hour time to make calculating easier.
7:00 am is still 7:00
9:00 pm is 9+12=21:00
In between 7:00 and 21:00, there are 21-7=14 hours.
Now, since he took off an hour for lunch, we get 14-1=13 hours.
Joe worked for 13 hours.
Good luck!
