Prelim Standard 2 Formulae and Equations 3

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The number of 'standard drinks' in various glasses of wine is shown below.' A woman weighing 62 kg drinks three small glasses of white wine and two large glasses of red wine between 8 pm and 1 am. What would be her blood alcohol content (BAC) estimate at 1 am, correct to 3 decimal places?

1 point

0.057

0.030

0.037

0.046

Clear selection

Clark’s formula above is used to calculate the required dosage of medicine for children. Calculate the dosage of a cough medicine for a child who weighs 30kg using Clark’s rule if the adult dosage is 14mg.

1 point

6 mg

4 mg

5 mg

3 mg

Clear selection

Jim’s solution to the equation 3y + 5 = 5( y – 1) is shown below. Where is the error in Harry’s working?

1 point

Line 1 and line 2

Line 1 and line 3

Line 2 and line 3

Line 2 and line 4

Clear selection

There are five times as many cars registered in Australia as trucks. Let C stand for the number of cars and T for the number of trucks. Which equation correctly describes the relationship between the number of cars and the number of trucks?

1 point

Clear selection

Zac is driving at a speed (V) of 80 km/h. It takes Zac two seconds to react to a dangerous situation before applying the brakes. The stopping distance (d) is given by the formula below. How far will Zac travel in his car after applying the brakes using this formula?

1 point

60 m

82 m

164 m

246 m

Clear selection

What is the solution to the equation

1 point

x = 3

x = –3

x = 9

x = –9

Clear selection

1 point

Clear selection

At a party Charlotte begins drinking at 6:45pm and has 7 standard drinks before she stops drinking at 11:15pm. If Charlotte has a weight of 58 kg, calculate her BAC to 3 decimal places using the formula:

1 point