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-BARSIC- [3]
3 years ago
12

Consider the following data set:

Mathematics
1 answer:
Komok [63]3 years ago
3 0

Answer:

+5 Range; The range is now 25

Step-by-step explanation:

The original range would be calculated by subtracting 20 from 40, giving you 20 as the range. However, with the point 15 added, there would be a new lowest number, making the new range be 40-15, which is 25.

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An item is regularly priced at $70. Chang bought it on sale for 60% off the regular price. How much did Chang pay?
elena-14-01-66 [18.8K]

Answer: $42

Step-by-step explanation:

You need to find 60% of 70

10%= 7 (70/10)

60% = 42 (7x6)

so the answer is $42

3 0
3 years ago
Read 2 more answers
Two planes, A and B, start from the same place and move in different directions, making an angle of 50º between them. The speed
cluponka [151]

Answer: The distance between them is 230.65 miles.

Step-by-step explanation:

Since we have given that

Speed of plane A (b) = 200 miles per hour

Speed of plane B (c) = 300 miles per hour

Angle between them = 50°

So,

We will use the "Cosine formula", we get

a^2=b^2+c^2-2bc\cos A\\\\a^2=200^2+300^2-2\times 200\times 300\cos 50\textdegree\\\\a^2=40000+90000-120000\cos 50\textdegree\\\\a^2=130000-120000\times 0.64\\\\a^2=130000-76800\\\\a^2=53200\\\\a=\sqrt{53200}\\\\a=230.65\ miles\ per\ hour

So, distance between the two planes after one hour will be

Distance=\frac{Speed}{time}=\frac{230.65}{1}=230.65\ miles

So, the distance between them is 230.65 miles.

6 0
4 years ago
Read 2 more answers
Pls help due in an hour
BlackZzzverrR [31]

Answer:

4) Yes

5) Yes

6) Yes

7) No

Step-by-step explanation:

4) When we look at the table in the question, we can see the pattern is comics x 3 = price.

We know the definition of a proportional relationship is when one number is increased, the other is as well. So, it is in a proportional relationship.

5) We do the same thing here, we notice that we can divide the number of bikes by 5 to get the number of trips.

So, this is a proportional relationship.

6) The same reasoning applies to 6, we can see they follow a pattern.

7) All of them can be multiplied by 2, except the last one can't, so this is NOT a proportional relationship.

4 0
3 years ago
Read 2 more answers
A record store is having a sale. CDs that were regularly priced at $14 are on sale for $10.50. What is the percentage of decreas
alisha [4.7K]
25% off would be the answer.
3 0
4 years ago
a shopkeeper sold goods for rs 2400 and made a profit of 25% in the process. find his profit per cent if he had sold his goods f
miv72 [106K]

case 1,

Let the CP be ₹x,

SP = ₹2400

Profit = SP – CP

= 2400 – x

Profit % = {(2400–x)/ x} × 100%

According to the question,

{(2400–x)/ x} × 100 = 25

=> (2400–x)/ x= 25 /100

=> 100(2400–x) = 25x [ cross multiplication]

=> 240000 – 100x = 25x

=> 240000 = 25x + 100x

=> 240000 = 125x

=> 240000/125 = x

=> x = 1920

So, CP = ₹1920

case 2,

SP = ₹2040

Profit = SP – CP

= 2040 – 1920

= ₹120

profit % = 120/1920 × 100%

= 16%

<h3>Thus, his profit would be 16% if he had sold his goods for ₹2040.</h3>
6 0
3 years ago
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