A plane travels at 850km/h.How long would it take to travel from Cape Town to Johannesburg if the route taken is 1 263km
Give the answer in hours and minute, rounded off to the nearest minutes
Answers
Answer:
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Answer:
Carefully read the problem, note
what numerical data is given,
and what is being asked for.
Two airplanes depart from an airport
simultaneously, one flying 100 km/hr
faster than the other. These planes travel
in opposite directions, and after 1.5
hours they are 1275 km apart.
Determine the speed of each plane.
2. Make a sketch, drawing, or
picture of the described
situation, and put all the given
data from the problem on the
drawing.
Look for what the problem’s
question is. In other words,
what do they want to know? In
this example, the problem asks
you to find the speed of each
plane.
Let x = the speed of one plane,
and y = the speed of the other.
3. Write down any numerical
relationships that the problem
gives you: Distance apart is
1275 km, time traveled is 1.5
hrs, and one plane is traveling
100 m/hr. faster than the other.
Let plane X be the faster plane.
4. Look for other information
(numbers, formulas, etc.) that
you can use to relate all the
items.
Distance = Rate • Time is the
formula you need in this case.
Distance traveled = Rate (or Speed) times
Time.
1275 km is the total of the distances
(added together) that each plan travels.
Travel time for each plane is the same, 1.5
hours; however, the planes’ speeds differ
by 100 km/hr.
Plane X
is traveling
X m/hr.
Plane Y
Is traveling
Y m/hr.
1275 km
in 1.5 hours
Speed of
Plane Y is
100 m/hr
slower than X.
Speed of
Plane X is
100 m/hr
faster than Y.