Alia has a AED 20 gift card for an online music store. All songs at the store have the same price. After Alia buys 3 songs, the
1 answer:
Answer:
Remaining balance = AED 13.75
Step-by-step explanation:
Given that:
Amount of gift card = AED 20
Amount left after buying 3 songs = AED 16.25
Cost of 3 songs = 20 - 16.25 = AED 3.75
Cost per song =
Cost per song = AED 1.25
Cost of 5 songs = 5(1.25) = AED 6.25
Remaining balance = 20 - 6.25 = AED 13.75
Hence,
Remaining balance = AED 13.75
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Using the relation between velocity, distance and time, it is found that her jogging rate was of 6 mph.
<h3>What is the relation between velocity, distance and time?</h3>Velocity is <u>distance divided by time,</u> hence:
Jogging, her velocity was of v, while the time was of t, for a distance of 12 miles, hence:
Biking, her velocity was of v + 6, while the time was of 3 - t, for a distance of 12 miles, hence:
Then:
18t - 6t² = 24t - 36
6t² + 6t - 36 = 0
t² + t - 6 = 0
(t + 3)(t - 2) = 0. -> t = 2 hours.
Hence her jogging rate in mph is given as follows:
More can be learned about the relation between velocity, distance and time at brainly.com/question/24316569
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