D= distance
t= time
s= speed
FORMULA
Distance= speed * time
STEP 1:
Find total distance
Jim's D + John's D= 3 miles
STEP 2:
Distance= (Jim's speed * time) + (John's speed * time)
D= 4t + 5t
3 miles= 9t
divide both sides by 9
3/9= t
reduce by 3
1/3 hour= t
STEP 3:
1 hour= 60 minutes
=1/3 * 60
=(60/3)
= 20 minutes
ANSWER: They will travel 20 minutes before they meet.
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Answer:
if 1in=15miles
then20.4in=? miles
1in by ? miles and 20.4in by 15miles
1in ? miles= 306in miles
divide both sides by 1in
? miles= 306 miles
therefore 20.4in = 306miles
You add 8 to the 7 then divide the sum of 8 and 7 by -5 to get x= -3