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Doss [256]
3 years ago
10

1.) x - 4y = 11

Mathematics
1 answer:
storchak [24]3 years ago
4 0
Y= -5
X= -9

Showing work is a pain......
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Is this right please help meh
Mama L [17]
Yes you are correct very nice job!
4 0
3 years ago
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Two friends Ana and Juan are buying books by joining the History Book
Travka [436]

Answer:

Ana  spent $17  per book on average.

Juan  spent $14.78  per book on average.

y = $15 + 17x--------- equation 1

y= $10 + 14.78 x------------- equation 2

Step-by-step explanation:

Ana has to pay a yearly fee of $15 to join.

She spends a total of $525 for 30 books.

The amount spent on books = Total amount - yearly fee

                                                 = $525- $15= $510

Price per book on the average = $510/30= $ 17

Ana  spent $17  per book on average.

Juan has to pay a yearly fee of $10 to join.

He spends a total of $350 for 23 books.

The amount spent on books = Total amount - yearly fee

                                                 = $350- $10= $340

Price per book on the average = $340/23= $ 14.78≅ $15

Juan  spent $14.78  per book on average.

The function can be established if y gives the total cost and x gives the number of books

y = $15 + 17x--------- equation 1

y= $10 + 14.78 x------------- equation 2

Juan has a better deal because the yearly fee is less also the price per book is less.

8 0
3 years ago
So i dont know what 9+4+x is can you help?
Dahasolnce [82]

Answer:

13+x

Step-by-step explanation:

all you have to do is 9+4 which is 13 and leave the +x so you get 13+x as your answer

3 0
3 years ago
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which transformations would result in a geometric figure that is exactly the same size and shape as DEF?
Ludmilka [50]
Rotation, Translation, and Reflection are the 3 rigid motions that preserve angle measure and side length.
A dilation only preserves angle measure.
Therefore, the answers are A, C, and D
7 0
2 years ago
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What is the inverse of the function f(x) = 2x + 1?
Leto [7]

Answer:

I think that the answer is A

7 0
2 years ago
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