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shutvik [7]
3 years ago
14

While selling 15 copies, a man gains the cost price of 5 copies, find the profit percent.​

Mathematics
1 answer:
Tpy6a [65]3 years ago
7 0

Answer:

If the price is p and the cost is c, then

15p = 20c

p/c = 20/15 = 1.333

so, he made 33% profit

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The interior ages of a triangle have measure
Nina [5.8K]

Answer:

See below in bold.

Step-by-step explanation:

1. The 3 angles in a triangle add up to 180 degrees.

So x = 180 - (55 + 25)

= 180 - 80

= 100 degrees.

2.  The 4 angles in a quadrilateral add up to 360 degrees,, so

3x + 127 + 54 + 119 = 360

3x + 300 = 360

3x = 360 - 300

3x = 60

x = 20 degrees.

3. Exterior angle

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3 years ago
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GuDViN [60]

Answer:

\frac{-5 \pm \sqrt{13} }{6}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

<u />\frac{-5 \pm \sqrt{5^2-4(3)(1)} }{2(3)}<u />

<u />

<u>Step 2: Evaluate</u>

  1. Evaluate Exponents:                    \frac{-5 \pm \sqrt{25-4(3)(1)} }{2(3)}
  2. Evaluate Multiplication:               \frac{-5 \pm \sqrt{25-12} }{6}
  3. Evaluate Subtraction:                  \frac{-5 \pm \sqrt{13} }{6}
8 0
3 years ago
ray OJ bisects angle IOK, if angle IOJ= 2x-5 and measure of angle JOK=x+11, then find measure of angle IOJ
Mashutka [201]
2x-5=x+11
x-5=11
x=16
2(16)-5
32-5
27=IOJ
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Find the area of the figure<br> A) 450MM<br> B) 67,500 MM<br> C) 600MM<br> D)150MM
Sphinxa [80]
Thats it option (C). Hope it helps!!

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3 years ago
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