MATHEMATICS HIGH SCHOOL

If the tax rate is 6.5%, what is the tax on $80?

Answers

Answer 1
Answer: Multiply 80✖️.065 and you'll get 8.80 Then add it to the total which is 80 +8.80 Which the answer is 88.80
Answer 2
Answer:

Answer: 5.2

Step-by-step explanation:

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At the corner store, Nico bought 5 pencils for $0.10 each and 3 pens for $0.50 each. He used t to represent the sales tax, in dollars, that he also paid. He paid a total of $2.12, including tax. Nico wrote this equation to represent what he paid. What errors, if any, did he make? 5(0.10) + 3(0.50) - t = 2.12
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9.   What is the least common denominator of 3/4, 4/5, 2/3?     A. 20B. 15C. 60D. 12

(1, 8, What is the mean of the data set 3, 2, 6)?

Answers

Answer:

3.6666666666667

Step-by-step explanation:

The mean is the sum of all the values divided by count of values

11 / 3 = 3.6666666666667 (mean)

Find the GCF of each pair of numb 5 and 40

Answers

Answer: The GCF of 5 and 40 is 5

Step-by-step explanation:

The greatest common factor (GCF) of two numbers is the largest number that divides both of them evenly. To find the GCF of 5 and 40, we can list the factors of each number and find their common factors.

The factors of 5 are 1 and 5. The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40.

To find the common factors, we can compare the factors of 5 and 40:

- Both 5 and 40 have 1 as a factor.

- However, 5 is not a factor of 40.

Therefore, the GCF of 5 and 40 is 1, as it is the largest number that divides both 5 and 40 evenly.

Another way to find the GCF is by using prime factorization. Let's find the prime factorization of 5 and 40:

- The prime factorization of 5 is 5.

- The prime factorization of 40 is 2 * 2 * 2 * 5.

To find the GCF, we take the common prime factors with the lowest exponents. In this case, the common prime factor is 5.

So, the GCF of 5 and 40 is 5.

Final answer:

The GCF of 5 and 40 is 5.

Explanation:

To find the GCF of 5 and 40, we can list the factors of each number and find the largest common factor.

Factors of 5: 1, 5

Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40

The common factors of 5 and 40 are 1 and 5. The largest common factor is 5.

Therefore, the GCF of 5 and 40 is 5.

Learn more about finding the greatest common factor (gcf) here:

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5
2. Expand the brackets and simplify:
a) X(2x + 3)​

Answers

Answer:

2x^2 +3x

Step-by-step explanation:

X(2x + 3)​

Distribute

2x*x + 3x

2x^2 +3x

Is √10 in simplest form?

Answers

3.16227766017

rounded it is 3

An observation deck extends 314 feet out above a valley. The deck sits 264 feet above the valley floor. If an object is dropped from the observation​ deck, its height h in​ feet, after t​ seconds, is given by h equals negative 16 t squared plus 264. How long will it take for the object to be 8 feet above the valley​ floor?

Answers

Final answer:

Using the quadratic equation h = -16t² + 264 which represents the object's height after time, we find that it will take 4 seconds for the object to reach 8 feet above the valley floor.

Explanation:

In this case, you're asked to find out how much time it takes for an object dropped from an observation deck to drop to a point 8 feet above the valley floor. The height h, in feet, after time t, in seconds, is represented by the quadratic equation h = -16t² + 264. Set the equation equal to desired height, which is 8 feet in this case. So, you have -16t² + 264 = 8. Rearranging, you get -16t² = 8 - 264, or -16t² = -256. Divide by -16 yields, t² = 16. The principal square root of 16 is t = 4.

Therefore, it will take 4 seconds for the object to be 8 feet above the valley floor.

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Tamara says that 15 / 3 = 5 is she correct ? explain

Answers


Yes, Tamara is correct. If you multiply 5 to 3 to check your answer you will get 15.
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