Probability denotes the possibility of something happening. It's a field of mathematics that studies the probability of a random event occurring. From 0 to 1, the value is expressed. Probability is a mathematical concept that predicts how likely occurrences are to occur.

We know that, $Probability of an event=\frac{Number of favourable outcomes}{Total number of outcomes}$

Number of favourable outcomes =21+24=45

Total number of outcomes = 120

Probability of getting a multiple of 3= $\frac{45}{120} =\frac{3}{8}$

Therefore, the probability of getting a multiple of 3 is $\frac{3}{8}$ .

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7 0

1 year ago

How many square yards of cement are needed to create the walkway around the rectangular pool?

sveticcg [70]

I would first cut off the ends that make a trapezoid and then find the area of the trapezoids and the area of the rectangles.
A trap = (1/2) * h *(b1 + b2)
A rect = L * W
A trap = (1/2) 4 * (6 + 14)
A = (1/2) * 4 * 20
A = 40 (there are 2 trapezoids) 40 * 2 = 80 yds^2
A rect = L * W
A = 12 * 4
A = 48 (there are 2 rectangles) 48 * 2 = 96 yds^2
80 + 96 = 176 yds^2

3 0

3 years ago

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