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Nutka1998 [239]
3 years ago
15

A price was first decreased by 12%, then it was decreased again by an additional 5%. What is the percent of the total decrease?

Mathematics
2 answers:
Alona [7]3 years ago
8 0

Answer:

17%

Step-by-step explanation:

You would add 12 plus 5 and it would give you 17%. The total percentage that was decreased.

Leno4ka [110]3 years ago
3 0

Answer:

17% ?

Step-by-step explanation:

that seems like the most logical answer

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A plane can fly 520 miles in the same time as it takes a car to go 200 miles. If the car travels 80 mph slower than the plane, f
telo118 [61]

Answer: the speed of the plane is 130 mph

Step-by-step explanation:

Let x represent the speed of the plane. If the car travels 80 mph slower than the plane, then the speed of the car would be (x - 80) mph.

Time = Distance/speed

plane can fly 520 miles in the same time as it takes a car to go 200 miles. This means that the time it takes the plane to fly 520 miles is

520/x

Also, the time it takes the car to drive 200 miles is

200/(x - 80)

Since the time is the same, it means that

520/x = 200/(x - 80)

Cross multiplying, it becomes

520(x - 80) = 200 × x

520x - 41600 = 200x

520x - 200x = 41600

320x = 41600

x = 41600/320

x = 130 mph

8 0
3 years ago
Given a mean of 571 and a standard deviation of 236.5, what is the z-score of the value 724 rounded to the nearest tenth? a.0.9
tangare [24]
The answer to this question is 0.6.
6 0
3 years ago
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Help!!! I need the CORRECT ANSWER!
Crazy boy [7]

Answer:

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3 0
3 years ago
The scale of a map is 1 inch : 10 miles. What is the scale of the map area to the actual area? 1 in. : 10 mi 1 in. : 20 mi 1 in.
AlexFokin [52]

Answer:

1 in. : 100 mi

Step-by-step explanation:

Scale = 1 inch : 10 miles

In the scale, the quantity is Length

The relationship between length and Area is;

Area = Length * Length

So inch becomes inch^2

1 inch * 1 inch = 1 i

10 miles * 10 miles = 100

The correct option is;

1 in. : 100 mi

4 0
3 years ago
How long is JK?
-Dominant- [34]

Answer:

C) 3 times the sq root of 3

Step-by-step explanation:

In a right angle triangle, the COS is definned as the ajacent side over the hypotenuse. So

COS 60 = JK/JL

COS 60 = JK/(6*sq root 3)

.5 = JK/(6*3**1/2)

JK = .5 *(6*3**1/2)

JK = 3*3**1/2

5 0
2 years ago
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