<span>The two trains are closing the initial distance between that of 280 miles by the sum of their two speeds. 80mph + 60mph = 140 mph. With the speed that the distance between the trains is closing, we can divide the starting distance to find out the number of hours until the trains pass. 280 miles / 140 mph = 2 hours. Since the trains left at 3:00 and will pass each other in 2 hours, they will pass each other at 5:00.</span>
Answer:
22
Step-by-step explanation:
2(3(5)-2(2)
2(15-4)
2(11)
2*11=22
Answer:
y^2+xy+x+3y+2
Step-by-step explanation:
first of all we have to multiplies the y in the second bracket for all numbers in the first bracket.
so we have:
xy+y^2+2y
now we have to do the same with 1
x+y+2
now we have to unite the two solutions
xy+y^2+2y+x+y+2
at least we have to added up the similar terms (that have the same literal part)
y^2+xy+x+3y+2
3n+7=10,13,16,19,22
Fifth term in the sequence = 22
6 7/15 - 4 3/10 = ?
Answer :
2 1/6 or 2 5/30
Step by Step :
convert to improper fraction
97/15 - 43/10
find the common denominator (30)
194/30 - 129/30
subtract from each other
194/30 - 129/30 = 65/30
change back to mixed number
2 5/30 or simplify to 2 1/6