Which is more fuel efficient car, an European car that takes 7 liters of gas for

Question

Which is more fuel efficient car, an European car that takes 7 liters of gas for each 100 km (that's how gas mileage is reported in Europe) or a car that takes 35 MPG. What if you compare the European car to a car that takes 30 MPG? Identify the number of significant digits show in each of the following examples. a) 7000 b) 450.0 c) 0.0000350 d) 445780 e)0.006200 f) 565.05 g) 74.00 h)7040.0 Perform the following calculations and round according to the rule of the significant numbers. a) 2.25 + 6 = b) 0.04 + 2.7 = c)18.640 + 670.445 = d) 0.70 - 0.1 = e) 640 - 627.03 = f) 1 12.09 - 6.7 = What is the rule? Explain how you round using this rule to get credit! Perform the following calculations and round according to the rule of significant figures: a) 3.14 times 5.6 = b) 300 times 10.6 = c) 0.059 times 6.95 = d) 80/0.675 = e) 0.003/106 = f) 8.5/0.356 = What is the rule? Explain how you round using this rule to get credit.

Explanation / Answer

8.

The Mileage of european car is given as 35 MPG ,where as the other car has a mileage of 30 MPG .since mileage of european car 35 MPG is greater than 30 MPG of other car ,european car is more fuel efficent than the other car.

9.

significant digits are the numbers1 to 9 present other than zero in each example

a)1

b)2

C)2

d)6

e)2

f)4

g)2

h)2

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