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77julia77 [94]
3 years ago
8

Tanya bought two adult tickets and one children's ticket to a movie for $15.90. Li bought four adult tickets and four children's

tickets for $38.40. Find the cost of one adult ticket and the cost of one children's ticket.

Mathematics
1 answer:
Fiesta28 [93]3 years ago
6 0
The answer, hopefully you will understand

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Solve the system of equations.
guajiro [1.7K]

Answer:

Option 2: (1, 0) and (0, -5)

Step-by-step explanation:

Let's solve this system of equations using the elimination method.

Start by labelling the two equations.

5x -y= 5 -----(1)

5x² -y= 5 -----(2)

(2) -(1):

5x² -y -(5x -y)= 5 -5

Expand:

5x² -y -5x +y= 0

5x² -5x= 0

Factorise:

5x(x -1)= 0

5x= 0 or x -1= 0

x= 0 or x= 1

Now that we have found the x values, we can substitute them into either equations to solve for y.

Substitute into (1):

5(0) -y= 5 or 5(1) -y= 5

0 -y= 5 or -y= 5 -5

y= -5 or -y= 0

y= 0

Thus, the solutions are (0, -5) and (1, 0).

3 0
2 years ago
Need help fast,please!
Elina [12.6K]

1) 3

2) 2

3) 7

4)5

5)5

6)9

7)4

4 0
3 years ago
Eli takes a typing test and types all 300 words in 1/10 hour.He takes the test a second time and types the words 1/12 hour. Was
Rama09 [41]
1/10 vs 1/12
6 mins vs 5 mins
6>5
5 is faster
2nd time was faster
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3 years ago
9/6=x/10 what is x? How to figure it out.
skelet666 [1.2K]

Answer:

x=15

Step-by-step explanation:

(10*9)/6=10*x/10

90/6=x

15=x

4 0
3 years ago
pls There are (4^9)^5 ⋅ 4^0 books at the library. What is the total number of books at the library? A.4^9 B. 4^45 C. 4^46 D. 1  
jekas [21]
We know that there are (4^9)^5 ⋅ 4^0 at the library, so we just need to simplify this to get the answer.
(4^9)^5 ⋅ 4^0
=(4^9)^5×1
=(4^9)^5
=4^9×5
=4^45. As a result, the total number of books at the library is 4^45 books at the library or B is the final answer. Hope it help!
6 0
3 years ago
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