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3 years ago

Tammy Has 61 hockey cards and 5 cards on each page. How many pages can tammy complete?

Mathematics

2 answers:

Nutka1998 [239]3 years ago

8 0

She can complete 12 pages

olga_2 [115]3 years ago

7 0

Answer:

12.2

Step-by-step explanation:

61 divided by 5

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"There are 15 questions on an exam. In how many ways can the exam be answered with exactly 8 answers correct?"

erastovalidia [21]

Answer:

The exam can be answered with exactly 8 answers correct in 6435 ways.

Step-by-step explanation:

The order is not important.

For example, answering correctly the questions 1,2,3,4,5,6,7,8 is the same outcome as answering 2,1,3,4,5,6,7,8. So we use the combinations formula to solve this problem.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

"There are 15 questions on an exam. In how many ways can the exam be answered with exactly 8 answers correct?"

Combinations of 8 questions from a set of 15. So

$C_{15,8} = \frac{15!}{8!(15-8)!} = 6435$

The exam can be answered with exactly 8 answers correct in 6435 ways.

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3 years ago

1. You can finish 9 math problems in 20/3 minutes. What is your unit rate of problems per minute?

MArishka [77]

Where is the question to this or is this the answer

8 0

3 years ago

Find the product. (r + s)2

mario62 [17]

When you've got a squares bracket, this simply becomes the bracket twice, therefore, (r+s)2 becomes (r+s)(r+s)
You've then go to use FOIL, and this gives you r^2+rs+sr+s^2, and this cannot be simplified any further.
Therefore, the product of this is r^2 + s^2 + rs + sr
Hope this is what you're looking for :)

3 0

3 years ago

An architect is creating a scale drawing of a school computer lab. The length of the lab is 32 feet and the width of the lab is

just olya [345]

The scale drawing of the computer lab will have a length of 4 centimeter and a widtgh of 6 centimeter.

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3 years ago

Read 2 more answers

A chameleon is looking for prey. Let positive numbers represent the elevation of prey above the chameleon and negative numbers r

alexira [117]

Answer:

B: The elevation of the chameleon

Step-by-step explanation:

The Fly is above the chameleon, so its elevation should be represented by a "positive number"(Example of positive number: 16)

Also,

The Grasshopper is below the chameleon, so its elevation should be represented by a "negative number"(Example of negative number: -23)

ඞHope this helps u because i got dis question from Khan Academyඞ

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3 years ago