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Tom [10]
3 years ago
7

Which algebraic expression represent forty times a number A 40 +n B 40n C n - 40 D 40/n

Mathematics
2 answers:
ipn [44]3 years ago
4 0

Answer: D

I not a 100% percent sure

jolli1 [7]3 years ago
4 0

Answer:

B. 40n

Step-by-step explanation:

When a variable is next to a number, such as this equation, it means to multiply.

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I need help this Question
Delicious77 [7]

Using the combination formula, it is found that the number of ways to choose the presenters is given by:

C. 462.

The order in which the presents are chosen is not important, hence the <em>combination formula</em> is used to solve this question.

<h3>What is the combination formula?</h3>

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by:

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

In this problem, 6 students are chosen from a set of 11, hence the number of ways is given by:

C_{11,6} = \frac{11!}{6!5!} = 462

More can be learned about the combination formula at brainly.com/question/25821700

#SPJ1

8 0
1 year ago
PLEASE HELP ASAP
likoan [24]

Answer:

a

Step-by-step explanation:

it goes 8 units over and its going up 7

4 0
3 years ago
A hair salon receives a shipment of 84 bottles of hair conditioner to use and sell to customers. The two types are labels type A
Rom4ik [11]
x-\ botlle\ A\\y-\ bottle\ B\\\\ \left \{ {{x+y=84} \atop {6,5x+8,25y=588}} \right. \\\\ \left \{ {{x=84-y} \atop {6,5x+8,25y=588}} \right. \\\\Substitution\ method\\\\&#10;6,5(84-y)+8,25y=588\\\\&#10;546-6,5y+8,25y=588\ \ \ | subtract\ 546&#10;1,75y=42\ \ \| divide\ by\ 1,75\\\\y=24\\\\There\ were\ 24\ bottles\ B\ and\ 42\ bottle\ A.
6 0
3 years ago
4−(3x−8)=21 solve this pls​
riadik2000 [5.3K]

Answer:

4 - ( 3x - 8 ) = 21

break the bracket first ,it gives : 4 - 3x + 8 = 21

12 - 3x = 21

- 3x = 21 - 12

- 3x = 9

-x = 9/3

-x = 3

X = - 3

[ check if the answer is correct, put -3 instead of X in the above equation ! we get 4 - { 3(-3) - 8 } = 21

4 - { - 9 - 8 } = 21

4 - { - 17 } = 21

break the bracket, minus and minus will multiply and will become plus , so we have 4 + 17 = 21 , hence 21 = 21 ! therefore X = -3

5 0
2 years ago
PLZZZZ HEEELLPPP!!!!!!
butalik [34]
Answer is tan inverse6/7
4 0
2 years ago
Read 2 more answers
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