A paddle boat rents for $10 plus $8 per hour. How much does it cost to rent a paddle boat for h hours? Write an expression and show your work.

Answers

Answer 1

Answer: 10 + 8h

10 would be the initial cost and would be unchangeable, leaving it as a constant. The $8 on the other hand increases based on the number of hours, making it the constant with the variable next to it.

Hope this helps!

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A person's blood pressure is monitored by taking 8 readings daily. The probability distribution of his reading had a mean of 129 and a standard deviation of 7. a. Each observation behaves as a random sample. Find the mean and the standard deviation of the sampling distribution of the sample mean for the eight observations each day. b. Suppose that the probability distribution of his blood pressure reading is normal. What is the shape of the sampling distribution? c. Refer to (b). Find the probability that the sample mean exceeds 140.

What is the greatest common factor of 8x and 40y?

8
8xy
320
320xy

Answers

The greatest common factor of 8x and 40y is 8.

What are Factors?

Factors of a number or an algebraic expression are the numbers or expressions which divides the given number evenly.

For example, 10 = 2 × 5

So we can say that 2 and 5 are factors of 10.

Greatest common factor of two or more numbers is the factor which is the greatest among all the common factors of both the numbers.

8x can be prime factorized as,

8x = 2 × 2 × 2 × x

Similarly, 40y can be prime factorized as,

40y = 2 × 2 × 2 × 5 × y

Greatest common factor of both the numbers is the product of the common prime factors of both.

Greatest common factor = 2 × 2 × 2 = 8, which is common to both.

Hence 8 is the greatest common factor of 8x and 40y.

Learn more about Greatest Common Factors here :

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Answer:

Hope this helps!

Stephanie claims that 26540is greater than 50. Do you agree or disagree? Explain.

Answers

Agree. 50 is a smaller

Which expressions represent rational numbers? Check all that apply.

Answers

The answers are numbers two and four.

Answer:

Step-by-step explanation:

NVM ITS WRONG

Enter the sum of numbers as a product of their GCF. 45 + 30

Answers

45 + 30 = 15(3 + 2) = 15(5) = 75

If 9x+2y^2−3z^2=132 and 9y−2y^2+3z^2=867, then x+y =

Answers

Answer:

$x + y = (1000)/(9)$

Step-by-step explanation:

Step 1: Identify the approach:

With this problem, the general solution is to try manipulate given data and transform data into a new form, in which, the desired value $(x + y)$ is on the left side and all of other components which do not contain $x$ or $y$ are on the right side.

Step 2: Analyze:

$9x + 2y^(2) - 3z^(2) = 132\n9y - 2y^(2) + 3z^(2) = 867$

Realize that in both equations, the $2y^(2)$ and $3z^(2)$ are in form of different signs. Then adding up corresponding sides of both equation can help eliminate these undesired components.