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Free_Kalibri [48]
3 years ago
11

Help with the perpendicular lines please

Mathematics
1 answer:
Dimas [21]3 years ago
7 0

Answer:

Red and Green are parallel

Black and Blue are perpendicular

Step-by-step explanation:

Parallel lines need to have the same slope. Lines red and green both have a slope of 1/2.

The slopes of two lines that are perpendicular have to be opposite reciprocals, and must be multiplied together to get -1. Line black has a slope of -4, and line blue has a slope of 1/4. Both of them multiplied together equals -1.

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At a profit of 8% a shopkeeper sold a calculator for Rs 1382.40.If he wants to increase his profit by 2%, at what price should h
MAVERICK [17]

Answer: New Price = Rs. 1408

Step-by-step explanation: Selling Price = Rs 1,382.4

Profit = 8%

Increased Profit = 10% (we'll discuss that later)

Costing Price:

Let CP be x

x = 1382.4 - 0.08x

=> x+0.08x = 1382.4

=> 1.08 x = 1382.4

Dividing both sides by 1.08

=> x = Rs 1280

So, the cost price is Rs 1280

Now, Let's discuss about the increased Profit:

Profit %age = 10%

Profit =  Profit %age * CP / 100

Profit = 12800/100

Profit = Rs. 128

New Price:

New Price = CP + Profit

New Price = 1280+128

New Price = Rs. 1408

6 0
4 years ago
Find the circumference of the circle shown below if the diameter equals 20 inches. Use 3.14 for π.
Rasek [7]

Answer:

62.83

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3 0
3 years ago
Admission to a county fair is $4.50 per person. The Rodriguez family pays $22.50 for admission to the fair. Which equation can y
Naya [18.7K]

Answer:

5 people

Step-by-step explanation:

22.50 ÷ 4.50 = 5

7 0
3 years ago
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If a is positive whole number which is greater a/5 or a/8 ?
strojnjashka [21]

Answer:

a/5

Step-by-step explanation:

You can choose a random number for a and see which is greater. For example, you can say a = 40.

That would mean a/5 = 8 and a/8 = 5. Since 8 is greater than 5, a/5 will always be greater.

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17 = p - 3 - 3p 
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20 = -2p
Divide by (-2p) to find p.

Since a negative divided by a negative equals a positive, -p would turn into a positive p.

-10 = p
8 0
3 years ago
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