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2 years ago

In a class of 25 students, 15 of them have a cat,

1 answer:

mote1985 [20]2 years ago

8 0

(I cannot draw the Venn diagram, sorry)

25 students in a class, 3 of them have neither -> Only 22 students have at least a pet.

15 of them have a cat, 16 of them have a dog -> There are 31 - 22 = 9 students that have both a cat and a dog

So, the probabilty of a person chosen at random that has a cat and a dog is 9 : 25 = 0.36 -> 36%.

You might be interested in

For which value of Theta is tan Theta equal to sin Theta?<br>A. pi<br>B. pi/2<br>C. pi/4<br>D. pi/6

AnnyKZ [126]

Answer:

a. pi

Step-by-step explanation:

7 0

3 years ago

Adam bought a new video game. He graphed his points earned below.

marusya05 [52]

Answer:

1,500 points per minute

Step-by-step explanation:

You can tell it's 1500 points per minute because the lines meet up at (2,3) meaning that 3/2 = 1500, to double check you could do 9/6 where the points also meet up at the exit of the graph which is ALSO 1.5 meaning 1,500 points per minute

4 0

3 years ago

What's the name for the angle 35°

Simora [160]

Any angle that would be less than 80 degrees would be known to be called an "Acute Angle". Therefore, your correct answer would then be known to be called an Acute Angle.

I hope this helps you!

7 0

3 years ago

Erica can run 1/6 of a kilometer her school is 3/4 of a kilometer away from her home at this this speed how long would it take e

shepuryov [24]

Answer:

4 minutes 30 seconds

Step-by-step explanation:

Given:

Erica can run 1/6 of a kilometer in one minute.

Her school is 3/4 of a kilometer away from her home.

Question asked:

How long would it take Erica to run home from school = ?

Solution:

As here distance is given and also speed is given, we will find time taken to run from home to school by using,

$Speed=\frac{Distance}{Time} \\ Time =\frac{Distance}{Speed} \\$

$=\frac{3}{4} \div\frac{1}{6} \\\\ =\frac{3}{4} \times\frac{6}{1} \\\\ =\frac{18}{4} \\ \\ =\frac{9}{2} \\ =4.5 \ minutes$

Therefore, it takes 4 minutes 30 seconds Erica to run home from school.

5 0

3 years ago

A rectangle has sides of 4x cm and x cm. the sides of the rectangle are all increased by the same length.if the perimeter of the

Verdich [7]

Answer:

4 cm

Step-by-step explanation:

The perimeter of the original rectangle is ...

P = 2(L+W) = 2(4x + x) = 10x

The perimeter of the larger rectangle after we add "a" to each side is ...

P = 2(L +W)

= 2((4x+a) +(x+a))

= 10x +4a = 10x +16

4a = 16 . . . . . subtract 10x from both sides

a = 4 . . . . . . . divide by 4

The length added to each side is 4 cm.

4 0

3 years ago