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Hunter-Best [27]
3 years ago
15

The price of a dress is reduced by 60%.When the dress still does not​ sell, it is reduced by 60% of the reduced price. If the pr

ice of the dress after both reductions is ​$72, what was the original​ price?The price of a dress is reduced by 25​%.When the dress still does not​ sell, it is reduced by 25​% of the reduced price. If the price of the dress after both reductions is ​$72, what was the original​ price?
Mathematics
1 answer:
Nina [5.8K]3 years ago
6 0

Answer:

1. $450

2. $128

Step-by-step explanation:

1. new price = .4 (.4 * original price x)

72 = .16x

x = 450

2. new price = .75 (.75 * original price x)

72 = .5625x

x = 128

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dale is driving to Miami. suppose that the distance (in miles) is a linear function of his total driving time (in minutes). dale
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t = 52: d = 50
If we think of this as a graph, we can think of the x-axis representing time and the y-axis representing the distance to the destination. Being linear, the function will be a line, i.e. it will have a constant gradient. If you were plot the two points inferred from the information and connect the two dots, you will get a declining line (one with a negative gradient) representing the inversely proportional relationship or equally, the negative correlation between the time driving and the distance to the destination. The equation of this line will be the linear function that relates time and the distance to the destination. To find this linear function, we do as follows:

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