Given the Scale of the Drawing as 3 : 1000
It means in the Drawing a Length of 3cm is Equal to 1000cm of the Actual Pool
It means in the Drawing a Length of 3cm is Equal to 10m of the Actual Pool
Given the Length of the Pool in the Drawing is 15cm
⇒ Actual Length of the Pool is 5 × 10m = 50m
Given the Width of the Pool in the Drawing is 7.5cm
⇒ Actual Width of the Pool is 2.5 × 10m = 25m
We know that Area of Rectangular Pool is Length × Width
⇒ Area of the Rectangular Pool = 50 × 25 = 1250m²
D) (4,3)
E) (5,-1)
B) (3,-1)
C) (2,2)
You can either convert -3 into a fraction, or convert -2/5 into a decimal so you can solve this.
If you decide to convert -3, into a fraction, it would be -3/1, and you'd have to multiply that by the reciprocal of -2/5.
So, you'd have -3/1(-5/2)=15/2, which can be simplified to 7 1/2.
If you decide to convert -2/5 into a decimal, you would get -0.4. You would then divide -3 by -0.4, which is equal to 7.5.
Both 7.5 and 7 1/2 are correct answers, and if you were to convert 7.5 into a fraction and 7 1/2 into a decimal, you would notice that they are the same number, but in different forms.
Since the question is asking for the time units to be in hours, you want to convert 30 minutes to an hour; 0.5
We’re able to use the basic motion formula for velocity to work out this question.
Velocity = distance / time
Velocity = 5 / 0.5
Velocity = 10km/h
Therefore, Stanley’s average speed was 10 kilometres per hour. :)
To get t on one side, we have to use inverse operations to get rid of the 5.
1. Use inverse operation of multiplication to get rid of 5. Which would be division.
2. Divide both sides by 5.
5t/5 = 7 1/2 / 5
3. Solve.
5t/5 = t and 7 1/2 /5 = 1 1/2
7.5 / 5 = 1.5
Therefore, your answer would be C. divide both sides by 5, and the answer is 1 1/2.
