If you sleep 7 hours every night how many hours are you awake in a year?

Answers

Answer 1

Answer: 24h - 7h = 17h. 17 * 365= 6 205 h a year. In a leap year, it is 6 222 h a year.

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Explain what the point (20,160) represents in the context of the situation? Check all boxes that apply A. 160 shirts cost $20B. 20 shirts cost $160
C. 20,160 shirts cost money
D. The total cost of shirts is 20,160

Answers

Answer:

option B is correct option.

Step-by-step explanation:

Explain what the point (20,160) represents in the context of the situation? Check all boxes that apply

Looking at the graph we come to know that 20 shirts cost $160 because x -axis represent number of shirts and y-axis represent Total Cost

So, the point(20,160) means x = 20 and y=160

We have 20 shirts and the cost is $160

So, option B is correct option.

What is 15 - 7 x 2+ 2 to the 3rd power

Answers

15 - 7 x 2 + 2^3
15 - 7 x 2 + 8
15 - 14 + 8
= 9

The books in a private library are classified as fiction and nonfiction. There are 400 books in the library. There are 40 more fiction books than nonfiction books. Audrey randomly picks a book. A few minutes later, Ryan randomly picks one of the remaining books. What is the probability that both pick nonfiction books?

Answers

We must first solve the number of fiction and nonfiction books
if x is the number of fiction books and
y is the number of nonfinction books

Then,
x + y = 400
x = y + 40

Solving the system of equations:
x = 220
y = 180

Therefore, the probability that Audrey and Ryan will get both nonfiction books is
P = 180/400 + 179/399
P = 0.8986

Answer: The probability is P = 0.20

Step-by-step explanation:

The data that we have is:

Total books = 400

If the number of non fiction books is Nf and the number of fiction books is F, we have that:

F = Nf + 40

So here we have a system of equations:

Nf + F = 400

F = Nf + 40

we can replace the second equation in the first one, and solve it for Nf.

Nf + (Nf + 40) = 400

2*Nf + 40 = 400

2*Nf = 400 - 40 = 360

Nf = 180

So we have 180 non-fiction books.

We want to calculate the probability of picking at random two non-fiction books.

When Audrey picks one, the probabilty is equal to the number of non-fiction books divided the total number of books:

p1 = 180/400

for Ryan we have the same, but the number of books is 399 now (Because Audrey already took one), and the number of non-fiction books is 179.

p2 = 179/399

The probabiliy for both events to happen is:

P = p1*p2 = (180/400)*(179*399) = 0.20

NEED HELP NOW!!!!!!!a 5 inch bamboo shoot doubles in height every 3 days. if the equation y=ab^x , where x is the number of doubling periods , represents the height of the bamboo shoot, what are the values of a and b?

Answers

Answer a = 5 and b = 2.

Procedure

Initially means x = 0, then

5 = a*b^0 = a*1 = a, then a = 5

When x = 1, the height is the double of 5, i.e 10 and

10 = a.b^1 = a.b ⇒ b = 10/a = 10/5 = 2

The a = 5 and b = 2, so the equation is y =5(2)^x

4’ square?* peterminter

Answers

If it is a square, all sides has equal length.
Since square has 4 sides one side has to be divided by 4.
4' * 4 = 16'

Matematicas alguien me explica cómo hago esto 2 • 4 •5

Answers

¡Claro! Para multiplicar esos números, simplemente tienes que multiplicarlos uno por uno.
Entonces, 2 • 4 es igual a 8, y luego 8 • 5 es igual a 40. ¡Así que el resultado es 40!

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