The situations can be represented by the exponential function f(x)=60x1.15^x
After 7.86 years the value of the investment will be three times the initial value (If you round to the nearest dollar)
After 8 years the value of the investment will be $184.00 (If you round to the nearest dollar)
24% is the amount of money she spent
Answer:
y = 100 - 5x
Step-by-step explanation:
Total amount of gift card = $100
Amount spent per day = $5
Number of days = x days
Write an equation to show the amount left on the card after x days
y = 100 - 5x
Where,
y = amount left on the gift card
x = number of days
For example,
Assume x = 2 days
Amount left on the gift card, y
y = 100 - 5x
y = 100 - 5(2)
= 100 - 10
= 90
y =$90
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