9 Leon wrote an expression that is equivalent to (30 + 6) + 12. Which expression could be the
1 answer:
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Answer :
2 hours 36 minutes
Step-by-step explanation :
speed = distance / time
Distance = 150 km
time = 1 hour 30 minutes
= 1,5 hours
How long will it take the car to cover a distance of 260 km at the same average speed ?
Time = Distance/Speed
= 260 km / 100 km/hour
= 2,6 hours
____________________
to convert hours to hours and minutes we can multiply by 60.
2, 6 hours
2 hours and 0,6 hours
0,6 = 3/5
3/5 × 60
60 ÷ 5 × 3
36 minutes
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Answer:
- according to the above x²-2x-15 divided by the number below x-3 first I cancel out the x
- the we solve the next x-5 divided by x²-9 then as usual rule out the x
- now we only have x-2x-15 divided by-3 divided by-5÷x-9 now our next step is to again single the equations out
- now the next -5 divided by x-9 here there's nothing to rule out therefore the sign "÷" is changed to "×" cancel out the -5 and therefore we have