Which of the following are identities? A) sin^2x - cos^2x = 1 . B) sin^2x = 1 - cos^2x . C) tan^2x = 1 + sec^2x . D) cot^2x = cs
1 answer:
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The amount of money that Carly would have left if she doesn't buy any packs of baseball cards is $20.
<h3>How to calculate the amount of money?</h3>In order to calculate the amount of money that Carly would have left if she doesn't buy any packs of baseball cards, we would determine the cost of each baseball card as follows:
- Let the cost of each baseball card be x.
- Let the number of cards bought be n.
Translating the word problem into an algebraic expression, we have;
x - n = 16
x - 2n = 12
Solving the simultaneous equations by elimination, we have:
n = 4
Therefore, Carly's minimum balance is given by:
x - n = 16
x = 16 + n
x = 16 + 4
x = $20.
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<u>Complete Question:</u>
The graph shows the relationship between the total amount of money that Carly will have left, y, if she buys x packs of baseball cards. How much money will she have if she doesn't buy any packs of baseball cards?
Answer:
Step-by-step explanation:
Let the number be .
The number is 5.
Step-by-step explanation:
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