The value of a collectible coin can be represented by the equation Y=2x+15, where x represents its age in years and y represents
its total value in dollars. What is the value of the coin after 19 years?
$2
$23
$38
$53
2 answers:
Answer:
53
Step-by-step explanation:
2*19 =38
then by substituting 2x=38
then,
38+15=53
Answer:
53
Step-by-step explanation:
took the test and got it
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Answer:
This is not possible with 2 equal symbols
What exactly are you trying to figure out?
She began with 20.
If she bought 7 more books and ended up with 17, that means she had ten beforehand. If she had half remaining, we simply double it, thus getting 20.