Answer:
Step-by-step explanation:
So for this we have to find the percentage by using 'percentage of error'
If at first it was 15 then it went up to 19 we have to subtract 15 - 19= -4
Ignore the negative. Now divide= 4/19= 0.21
The size went up by 21%
Answer:

Step-by-step explanation:
The translation speed of the wheel is:


The angular speed of the wheel is:


First one is c
second one is b
and third one is c
Answer:
Step-by-step explanation:
If 2 dvd’s cost $12, you take the total of $12 and divide by 2. Each dvd costs $6
In the question, they give you the formula for speed...
speed = distance / time
They also give you the distance and the time, so all we have to do is stick them into the equation...
speed = 3 2/3 Km / 1/3 hour
speed = 3 2/3 / 1/3
To divide the fractions, first we need to convert 3 2/3 into an improper fraction
3 2/3 = 11/3
now we multiply 11/3 x the reciprocal of the divisor 1/3. The reciprocal just means flip the numerator and denominator
speed = 11/3 x 3/1
speed = 33/3
speed = 11 Km/hour