David drove a distance (d) of 187km, to 3 significant figures. He used 28 litres of petrol (p), to 2 significant figures.
The petrol consumption (c) in km per litre is given by the formula: c= d/p
By considering bounds, work out the value of c, to a suitable degree of accuracy. You must show your working and give a reason for your answer. I'm not totally comfortable with sig figs, but I believe that the answer can only be expressed as accurately as least number of sig figs of any data used in the computations.....thus ....the answer should be rounded to 2 sig figs
So
187 / 28 = 6.67 ⇒ 6.7 km / L [rounded to 2 sig figs ].
Answer:
x = 28
y = 13/7
Step-by-step explanation:
2x + 2y = 160
xy = 52
y = 80-x
80 - x = 52
-x = -28
x = 28
y = 13/7
Answer: 10
Step-by-step explanation:
Answer:
y would be the 1
Step-by-step explanation:
Answer:
The answer is d
Step-by-step explanation:
Standard Form : -6x + 9= 0
Factorization: -3(2x -3) =0
Solution: x= 9/6=1.5