System of Equations
For the problem to solve we'll use the following variables:
x = number of the early bird tickets sold
y = number of the regular tickets sold
Haley sold a total of 20 tickets, thus:
x + y = 20 [1]
Early bird tickets cost $10 and regular tickets cost $15, thus the total money collected is:
10x + 15y = 225
Dividing by 5:
2x + 3y = 45 [2]
We have to solve the system of equations [1] and [2].
Multiply [1] by -2:
-2x - 2y = -40 [3]
Add [3] to [2]:
-2x - 2y +2x + 3y = -40 + 45
Simplifying:
y = 5
Substituting in [1]:
x + 5 = 20
Subtracting 5:
x = 20 - 5
x = 15
Solution: Hayley sold 15 early bird tickets and 5 regular-priced tickets
The order pair solution is (15,5)
Serena should focus on a certain amount and track her spending. Option B
<h3>What Serena should do</h3>
From the information given, Serena wants to reduce debt and to do this she needs to pay attention on how she borrows and the possible way to pay her debts.
Some possible ways to reduce debts include;
Thus, Serena should focus on a certain amount and track her spending. Option B
Learn more about financial goals here:
brainly.com/question/2801397
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Answer:
Use distributive property:
-6x+12
The answer is 17. The decimal point needed to be moved by 2 places to the right since the divisor is a decimal.