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Oksana_A [137]
4 years ago
9

What comes next in the series 21 18 15 12​

Mathematics
2 answers:
murzikaleks [220]4 years ago
6 0

Answer:

9, 6, 3,0

Step-by-step explanation:

Alex17521 [72]4 years ago
3 0

Answer:

9

Step-by-step explanation:

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If 5(3x − 2) = 6, then x =<br><br> a. 2/6<br> b. 5/6<br> c. 10/15<br> d. 16/15
kirill [66]

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D

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
at a movie theatre, child admission is $6.40 and adult admission is $9.70. on Wednesday, 128 tickets were sold for a total sales
grandymaker [24]

Answer: 74 adult tickets were sold on Wednesday.

Step-by-step explanation:

Let x represent the number of child admission tickets sold on Wednesday.

Let y represent the number of adult admission tickets sold on Wednesday.

On Wednesday, 128 tickets were sold. It means that

x + y = 128

At the movie theatre, child admission is $6.40 and adult admission is $9.70. The total ticket sales on Wednesday was $1063.40. It means that

6.4x + 9.7y = 1063.4- - - - - - - - - - 1

Substituting x = 128 - y into equation 1, it becomes

6.4(128 - y) + 9.7y = 1063.4

819.2 - 6.4y + 9.7y = 1063.4

- 6.4y + 9.7y = 1063.4 - 819.2

3.3y = 244.2

y = 244.2/3.3

y = 74

x = 128 - y = 128 - 74

x = 54

4 0
4 years ago
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