Four fifths of the members of a club are female. Three-quarters of these females are over 20 years old. What fraction of the members of the club are females over 20 years old? Show your working please! Thanks so much!

Answers

Answer 1
Answer: no. of FEMALES =4/5(no. of members in club)
in that 
no. of females over 20 years old=1/3(no. of FEMALES)=1/3(4/5(no. of members in club))
=4/15(no. of members in club)
no. of females over 20 years old/no. of members in club=4/15



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The legs of a right triangle measure 9 inches and 12 inches. What is the length of the hypotenuse of this triangle?

Answers

The length of the hypotenuse of this triangle is 15 inches.

What is Pythagoras Theorem?

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs.

In this case, let's label the legs of the triangle as a and b, with a = 9 inches and b = 12 inches. Let c be the length of the hypotenuse that we want to find. Then the Pythagorean theorem can be written as:

c² = a² + b²

Substituting the values we know, we get:

c² = 9^2 + 12^2

c² = 81 + 144

c² = 225

Taking the square root of both sides, we get:

c = √225

c = 15

Therefore, the length of the hypotenuse of this triangle is 15 inches.

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legs legnth a and b, and hypotnuse c
a^2+b^2=c^2
legs are 9 and 12
a=12
b=9
12^2+9^2=c^2
144+81=c^2
225=c^2
sqrt both sides
15=c

the legnth of the hyptonuse is 15 inches

Compare using <, >, or =.
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Answers

7 2/5 as an improper fraction is 37/5 and 7 3/8 as an improper fraction is 59/8. Then we convert those two improper fractions into a decimal (by 100) and get  7 2/5 = 7.4 and 7 3/8 = 7.3, 7.4 is bigger than 7.3 so the answer is...

7 2/5 > 7 3/8

11. A line segment is different from a line in that a segment hasA. only one endpoint.

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C. two endpoints.

D. an undefined length.

Answers

A line segment would be C. 
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A randomly generated list of numbers from 0 to 4 is being used to simulate an event, with the numbers 3 and 4 representing a success. What is the estimated probability of a success?

Answers

Answer:

40%

Step-by-step explanation:

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Whats the difference of 10 and u ?

Answers

The difference of 10 and u

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Jessica is planting a garden. It has the shape of a right triangle. She wants 2 plants for each square yard of area. How many plants does she want in the​ garden?

Answers

Final answer:

In order to determine the number of plants needed for Jessica's garden, we would need to first calculate the area of the triangular garden and then multiply by 2 (since she wants 2 plants per square yard). Without specific dimensions of the garden, we can't provide a specific number.

Explanation:

The question is about calculating the number of plants Jessica needs for her right triangle garden. To solve this problem, we first need to know the dimensions of the garden to calculate its area. For a right triangle, the area is calculated as half of the product of the length and width (base and height). Let's assume the garden's dimensions are base b yards and height h yards. Thus, the area is 0.5*b*h square yards.

Given that Jessica wants 2 plants for each square yard, the number of plants she needs would be twice the area of the garden. So if the area is 'A', she will need 2*A plants. Without knowing the specific dimensions of the garden, this is the best estimates that we can provide.

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