Ted and Wayne are both travelling. Ted drives at an average speed of 90 km/h. Wayne left 30 mins later then Ted and drove at an
average speed of 100 km/h.
A)How long did it take Wayne to catch up to Ted?
B)How far have they driven at this point?
A)How long did it take Wayne to catch up to Ted?
B)How far have they driven at this point?
1 answer:
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Turn it into math terms bit by bit. let x be "a number"
8 times a number is 8×x
increased by 9 is +9
7 times a number is 7×x
exceeds is minus
by 15 is =15
now we put it together.
solve
8 times a number is 8×x
increased by 9 is +9
7 times a number is 7×x
exceeds is minus
by 15 is =15
now we put it together.
solve