Libby reads for 0.75 of an hour every night. How many hours will she read in 1 week. show work

Mathematics

2 answers:

Norma-Jean [14]2 years ago

7 0

Answer:

5.25 hours

Step-by-step explanation:

One week = 7 days

7 x 0.75 = 5.25 Hours

Hope this helps, mark as brainliest :)

andrey2020 [161]2 years ago

6 0

Answer:

5.25 hours

Step-by-step explanation:

So in a week there is 7 days and we know she reads <em><u>EACH</u></em> night 0.75 so we know we have to multiply:

0.75 x 7= 5.25

So In one week or 7 days she read 5.25 hours.

Hope this helps, and have good day :3

You might be interested in

What is the range of the function on the graph

grigory [225]

The answer is the last answer choice:
all the real numbers greater than or equal to -3

The range of a function is all the possible y values of a function. From the function you see on the left side, it shows that the minimum value is at (2, -3) and from there it doesn't go any lower meaning all the values will be higher than -3 for the y value.

7 0

2 years ago

Let X equal the number of flips of a fair coin that are required to observe

Nataliya [291]

Answer:

(a) I attached a photo with the diagram.

(b) $f(x) = \big( \frac{1}{2} \big)^{x-1}$

(d) 4

(e) $k^2/2$

Step-by-step explanation:

(a) I attached a photo with the diagram.

(b) The easiest way to think about this part is in terms of combinatorics. Think about it like this.

To begin with, look at the three each level of the three represents a possible outcome of throwing the coin n-times. If you throw the coin 3 times at the end in total there are 8 possible outcomes. But The favorable outcomes are just 2.

1 - Your first outcome is HEADS and all the others are different except the last one.

2 - Your first outcome is TAILS and all the others are different except the last one.

Therefore the probability of the event is

$f(x) = P(X=x) = \frac{2}{2^x} = \frac{1}{2^{x-1}} = \big( \frac{1}{2} \big)^{x-1}$