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3 years ago

a coin is tossed , then a number 1-10 is chosen at random.what is the probability of getting heads then a number less than 4?

1 answer:

4 0

Probability of sequences can be calculated by multiplying the chance of the first event by the chance of the second, and so on.

The probability of tossing a coin and getting heads is 50%, or 0.5, and the probability of selecting a number less than four from 1-10 is 40%, or 0.4.

The overall probability can then be expressed as:

0.5 x 0.4 = 0.2 or 20%

There is a twenty percent chance that a heads would be tossed and a number less than four selected.

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David's equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings

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3 years ago

A math class has three girls and 7 boys in the 7th grade and five girls and five boys in the 8th grade the teacher randomly sele

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Answer:

7/20

Step-by-step explanation:

Seventh grade: Total = 3 + 7 = 10

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3 years ago

Find the percent of change from

Mashcka [7]

Answer:

option 4

Step-by-step explanation:

Percent change is calculated as

$\frac{change}{original}$ × 100%

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2 years ago

5. Here are two copies of the same figure. Show two different ways for

dedylja [7]

The two different ways of finding the area are,
Case 1 = assume horizontal rectangles,
Case 2 = assume vertical rectangles.

<h3>What is a rectangle?</h3>

the rectangle is a four-sided polygon whose opposites sides are equal and has an angle of 90° between its sides.

Here,

case 1,
As shown in the image
Area = sum of horizontal rectangles
Area = 10 * 3 + 2 * 5 + 2 * 1
Area = 30 + 10 + 2
Area = 42

Case II,
As shown in right figure,
Area of the vertical rectangles
Area = 3 * 5 + 5 * 3 + 2 * 6
Area = 15 + 15 + 12
Area = 42
Here, the area in case 1 is equal to case 2.

Thus, the two different ways of finding the area have shown above.

Learn more about rectangles here:
brainly.com/question/16021628

#SPJ1

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2 years ago