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3 years ago

find the number of possible combinations choose one of three books and one of eight CDs to bring on a bus trip

Mathematics

2 answers:

SVEN [57.7K]3 years ago

6 0

There is a possibility of 24 combinations I believe

maks197457 [2]3 years ago

5 0

There are 3 possibilities when choosing 1 of 3 books.
There are 8 possibilities when choosing 1 of 8 books.
Events are independent of each other so "and" would be to multiply.
3 × 8 = 24 possible combinations

You can also see by writing out the possibilities..
Say names of books are {A,B,C} and names of CD's are {1,2,3,4,5,6,7,8}
A1, A2, A3, A4, A5, A6, A7, A8
B1, B2, B3, B4, B5, B6, B7, B8
C1, C2, C3, C4, C5, C6, C7, C8

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Jennifer is shopping with her mother. They pay $2 per pound of tomatoes.

elena-14-01-66 [18.8K]

Answer:

The constant of proportionality is 2

The equation is y=2x

Step-by-step explanation:

The unit price or unit rate is $2

Let y represent the price of tomatoes, then the price of x tomatoes is

$y=2x$ dollars.

This represents a direct variation.

This equation is of the form $y=kx$ , where k=2 is the constant of proportionality.

4 0

3 years ago

Please help me <br> thank you

lilavasa [31]

Use the Pythagorean theorem. We have legs with lengths of 15 and 20 miles, now let's solve for the hypotenuse.

$a=15$
$b=20$
$c=?$

$a^2+b^2=c^2$
$15^2+20^2=c^2$
$c^2=400+225=625$
$c=25$

Your answer is 25 miles. Hope this helps! :)

7 0

3 years ago

the distance around tims rectangulr book is 48 centimeters the length of each longer side is 14 cm what is the length of each sh

yanalaym [24]

let the length of each shorter side be x

length of longer side= x+14

2(x+14) + 2x = 48

2x + 28 + 2x = 48

4x + 28 = 48

4x = 48-28

4x = 20

x = 5

shorter side = 5cm

3 0

3 years ago

What’s the answer to this (-4y+5)-(2y+4)=

goldfiish [28.3K]

Answer:

You can only simplify it down to -6y+1

Step-by-step explanation:

Since there is nothing past the equals sign, there is no way to solve it, only a way to simplify it. Hope this helps!

5 0

3 years ago

Read 2 more answers

At time t=0, water begins to drip out of a pipe into an empty bucket. After 56 minutes, 8 inches of water is in the bucket. what

Sergio [31]

Answer:

W = (1/7) t

Step-by-step explanation:

At t = 0, W = 0

At t = 56 minutes , W = 8 inches

W = k*t The y intercept = 0 because t = 0 W = 0

8 inches = k * 56 minutes

k = 8 / 56

k = 1/7 inches / minute

W = (1/7) t

3 0

3 years ago