The lowest common denominator of the two fractions is 4 because it is the smallest number that both fractions can be transformed into. 3/2 is multiplied by 2 to create 6/4 which can be added to 11/4.
divide distance by speed
equation: time = distance / speed
120/8.5 = 14.117 seconds
Counting by 10 is called base 10
Answer:
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Step-by-step explanation:



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Now, Using Pythagoras theorem

plug the values
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Evaluate the power
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Swap the sides of the equation
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Move constant to right hand side and change it's sign
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Calculate the difference
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Squaring on both sides
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Hope I helped!
Best regards!