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grigory [225]
2 years ago
12

3 students are 15% of what

Mathematics
1 answer:
geniusboy [140]2 years ago
6 0

Answer:

20

Step-by-step explanation:

Calculate 10% of total = 3 / 1.5 = 2

Multiply by 10x since 10% is 1/10 of 100%

2 x 10 = 20

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Which of the following represents a quadratic function?
Lubov Fominskaja [6]

<u>Answer:</u>

○ y = 6 + 5x + x^2

<u>Explanation:</u>

<h3>What is a quadratic equation?</h3>

A quadratic equation is an algebraic equation where the highest power of x is 2. The general form of a quadratic equation is as follows:

\boxed{ax^2 + bx + c = 0},

where <em>a</em>, <em>b</em>, and <em>c</em> represent known constants, and x is the unknown.

In this question, if you take a look at the second option, you will see that it is possible to rearrange the equation to make it look the general form:

y = 6 + 5x + x^2

⇒ y = x^2 + 5x + 6

Therefore, this equation is quadratic.

The other three options are not quadratic equations because none of them have an x^2  term in them.

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2 years ago
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What is the height of a wall 28 ft long that requires 1568 feet long
inysia [295]

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Question 8 options:
shusha [124]

Answer:

volume of cone=1/3 πr²h=1/3 ×π×5²×15=125πcm³

4 0
3 years ago
Helppppppppppppppp !!!!!!
algol [13]

Answer:

\sqrt{2^{5}  } is correct

Step-by-step explanation:

6 0
3 years ago
A) a shopkeeper buys a camera for $300 and sells it at $360. Calculate the percentage profit.
Lilit [14]
A) profit/original price x100 =percentage profit

(Profit: 360-300=$60)

=60/300 x100
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b) two cameras (original price): 300x2= $600
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Profit without discount: 720-600= $120

120-100= $20 discount

20/720 x100 =2.78%
4 0
2 years ago
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