375 lower reserved tickets were purchased and 365 upper reserved tickets were purchased
Step-by-step explanation:
Let x be the number lower reserved tickets
and
y be the number of upper reserved tickets
Then according to given statements

From equation 1:

Putting in equation 2

Subtracting 7030 from both sides

Dividing both sides by -1.5

Putting y = 365 in equation 1

Hence,
375 lower reserved tickets were purchased and 365 upper reserved tickets were purchased
Keywords: Linear equations, Variables
Learn more about linear equations at:
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Answer:
(3,5),(3,1),(5,7)
Step-by-step explanation:
Answer:
30
Step-by-step explanation:
(n+8)=2(7+8)=2(15)=30
When you have a negative exponent, you move the base with the negative exponent to the other side of the fraction to make the exponent positive.
For example:
or 
or 

When a base with an exponent is divided by a base with an exponent, you subtract the exponents together. (But you can only combine the exponents when the bases are the same)
For example:
(can't combine because they have different bases of y and x)


When you multiply an exponent directly to a base with an exponent, you multiply the exponents together.
For example:


First multiply the exponents together in the denominator
Now subtract the exponents together
(two negative signs cancel each other out and become positive)


Answer: The probability of Dana selecting a hockey card will be a 4/36 or 1/9.
Work:
1.I added all of the cards together.
2.I saw that the number of hockey cards was 4 and divided it by 36 (the total number of cards)
3.Simplified