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ASHA 777 [7]
2 years ago
11

PLS HELP!!! PLS MAKE SURE YOUR ANSWER IS 100% CORRECT!!! There are 84 students in a speech contest. Yesterday, 1/6 of them gave

their speeches. Today 4/7 of the remaining students gave their speeches. How many students still haven't given their speeches?
Mathematics
2 answers:
valentina_108 [34]2 years ago
6 0

Answer:

Step-by-step explanation:

7. 1/4 of 84 is 21, then 1/3 of that is 7

alina1380 [7]2 years ago
4 0

Answer:22 students

Step-by-step explanation:

1/6=7/42 of 84=14

4/7=24/42of 84 = 48

48+14=62

84-62=x

x=22

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12

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Three cars each need 4 wheels, so that is...

4 + 4 + 4 wheels, which is 12 wheels

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2 years ago
What is theoretical vs practical domain in an exponential equation. Plz provide an example too
olya-2409 [2.1K]

Answer:

The theoretical probability of an event occurring is an "expected" probability based upon knowledge of the situation. It is the number of favorable outcomes to the number of possible outcomes. Example: ... There are 6 possible outcomes when rolling a die: 1, 2, 3, 4, 5, and 6. The only favorable outcome is rolling a 6.Practical domains and ranges narrow the solution sets to be realistic within defined parameters.The possible values of "x" is called the domain. The possible values of "y" is called the range.

Step-by-step explanation:

7 0
3 years ago
4 days I have 140 copies of a book, 9 days I only have 50 left. Write an equation where c(t)=my+b where c is number of copies st
alexandr402 [8]

Answer:

c(t)=-18t+212.

Step-by-step explanation:

We have been given that 4 days I have 140 copies of a book, 9 days I only have 50 left. We are asked to write an equation c(t)=my+b, where c is number of copies still on hand and t days being available.

We have two points on line (4,140) and (9,50). Now, we will use these points to find slope as:

m=\frac{140-50}{4-9}

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Therefore, our required equation would be c(t)=-18t+212.

5 0
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