Use a commutative property to complete the statement. ba=
1 answer:
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Answer:
The correct option is A.
Step-by-step explanation:
The given number is
Where 5 is dividend and 11 is divisor.
Since dividend is less than divisor we add a decimal place and the first zero. Notice the decimal point which has appeared on the answer line and by the dividend. It does not appear anywhere else.
Now the dividend is 50. Divide the number by divisor.
Subtract 44 from 50.
Therefore remainder is 6. Place a zero after 6.
Now the new dividend is 60. Divide the number by divisor.
Subtract 55 from 60.
Therefore remainder is 5.
Therefore option A is correct.
Answer:
20 mph
Step-by-step explanation:
Let speed of Train a = Va mph
Let speed of Train b = Vb mph
Va = Vb + 30
Let time taken for Train a = Ta
Let time taken for Train b = Tb
time taken = distance travelled/speed
Ta = 350/Va = 350/(Vb+30)
Tb = 140/Vb
But they both travel in the same amount of time.
So, Ta = Tb
Cross multiply
Divide both sides by 210