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denis-greek [22]
3 years ago
15

community group bought 30 tickets to an amusement park at a total cost of $810. They bought x student tickets for $25 each and y

adult tickets for $30 each. Complete the following sentence. The community group bought__student tickets and__adult tickets. Enter a number like 15 in each box
Mathematics
1 answer:
Zina [86]3 years ago
4 0

it would be 18 student tickets and 12 adult tickets

18x25= 450

12x30 = 360

360+450 = 810

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Solve for C.<br> -5/8c=20
iris [78.8K]
-5/8c = 20....multiply both sides by -8/5 (this cancels out the -5/8 on the left
c = 20(-8/5)
c = -160/5
c = - 32

check..
-5/8(-32) = 20
160/8 = 20
20 = 20 (correct)

so c = -32
8 0
3 years ago
What’s the solution to the system 5y=6x-4 and 3y=-6x+20
Elina [12.6K]

Answer:

6x-5y=4

6x+3y=30

Step-by-step explanation:

Move variable to the left

5y=6x-4

Reorder the terms

5y-6x=-4

Change the signs

-6x+5y=-4

Move variable to the left

3y=-6x+20

Reorder the terms

3y+6x=20

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3 years ago
Having trouble here
Leya [2.2K]
I hope this helps (:

4 0
3 years ago
In a class 28 of students, 5 have a cat and 21 have a dog. There are 4 students who do not have a cat or a dog. What is the prob
Sergeeva-Olga [200]

Answer:

15 have only a dog

5 have a dog and a cat

9 have only a cat

Step-by-step explanation:

20 + 14 = 34, there there are only 29 students, so 34 - 29 or 5 have both a dog and a cat

15 have only a dog

5 have a dog and a cat

9 have only a cat

6 0
3 years ago
Rewrite the expression in z to the n power. The expression I was given is: 1 over z to the negative 1 half power.
12345 [234]

Answer:

The equivalent expression is;

\frac{1}{z^{-\frac{1}{2}}}=z^{\frac{1}{2}}

Step-by-step explanation:

The given expression is:


\frac{1}{z^{-\frac{1}{2} }}

Recall that:

\frac{1}{a^{-m}}=a^m


In our case, a=z and  m=\frac{1}{2}.


We use this property of exponent to obtain;

\frac{1}{z^{-\frac{1}{2}}}=z^{\frac{1}{2}}


6 0
3 years ago
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