a)
A = 5m × 7m = 35 m²
b)
A = 4cm×8cm/2 = 4cm×4cm = 16 cm²
c)
A = 1,2km×0,8km/2 = 0,96km²/2 = 0,48 km²
d)
A = (8m + 10m)·3m/2 = 18m·3m/2 = 9m·3m = 27 m²
Probability is calculated as:"Total number of Favorable outcomes divided by Total number of outcomes in the sample space".
The favorable outcomes in this case are the numbers divisible by 3. So the numerator lists the numbers that are divisible by 3, which are the favorable outcomes.
So, the answer to this question is option C
Subtract b:
T-b=d/2f
Multiply by 2f:
2f(t-b)=d
Rearrange:
D=2f(t-b)
You can only add fractions if they have the same denominator.
And when you add them, you only add the numerators together, and you keep the same denominator,
