MATHEMATICS HIGH SCHOOL

Torri had $20 to buy a birthday present for her dad. She decided to buy a DVD for $18. The sales tax is 7%. Does she have enough money? Explain your reasoning

Answers

Answer 1
Answer: I'm going to try! Yes Tori will have enough. She has $20 she uses $18, $2 left. She has 2 wholes. So 7$ of that would still be enough for it.

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MIDDLE SCHOOL

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. He randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 What's the average age of the sample of residents? A. 79 years old B. 68 years old C. 75 years old D. 77 years old

Answers

The correct answer would be option D, 77 Years Old.

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. He randomly selected 12 residents and determine their ages as given in the question. The average age of the sample of residents is 77.

Step-by-step explanation:

If we want to find out the average of anything, we simply add all the variables given, and then divide it with the quantity of the sample. In this question, the sample variable is the age of the residents living in the facility. So the sample is given below:

Sample ages: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68

Quantity of sample: 12

Average age = Sum of sample / Quantity of Sample

(80 + 65 + 75 + 83 + 68 + 73 + 88 + 79 + 94 + 72 + 79 + 68) / 12

= 924/12

= 77

So average age of the residents living in the facility is 77.

Learn more about Average or Mean at:

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MIDDLE SCHOOL

A community center is offering a discount on swimming passes. The regular cost for a
swimming pass is $6.00. Jake, Liza, and Manuel
each buy a swimming pass at the community
center. After the discount, the total cost for the
three passes is $14.40. What is the discount the
community center is offering?



help

Answers

Answer:4 dollars off

Step-by-step explanation:

Because 18-4 equals 14

Answer:

$2.20

Step-by-step explanation:

$14.40 divided by 3 is $4.8 so each pass costs $4.80 with the discount

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MIDDLE SCHOOL

Lamar has a bookcase with b shelves. There are 12 books on each shelf. Using b write an expression for total numbers of books

Answers

N=number of books
n=12b
HIGH SCHOOL

A building is composed of three rooms as shown. What is the perimeter of the building

Answers

It would help if i could see the measurements 
I would be able to help you if i would see the measurements.
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