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weeeeeb [17]
3 years ago
7

Persevere with Problems Suppose an online store has an item that costs $50. The item is on sale for 10% off the original price.

10% of $50 = $
Mathematics
1 answer:
ollegr [7]3 years ago
5 0

Answer:

$5

Step-by-step explanation:

To find 10% of $50 we will use 50*0.10 since 10%=.10

the result of this is 5/ $5

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A cyclist rides her bike at a rate of 36 kilometers per hour. What is this rate in meters per second? How many meters will the c
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1 km = 1000 m

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 there are 3600 seconds per hour

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6 0
3 years ago
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A square has a perimeter of 8 cm. What is its area?
serious [3.7K]
A square has four sides which all have the same length.

So if we call the length of each side of the square 'a'

The sum of length of all the sides (the perimeter) will be ,

a + a + a + a = 4a

Now let's equal this to the perimeter to find the length of each side 'a'

4a\quad =\quad 8\\ \\ a\quad =\quad \frac { 8 }{ 4 } \\ \\ a\quad =\quad 2

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To find area of a square we multiply the length of its two sides

So,

a\cdot a is the area of the square,

a\cdot a=\quad 2\cdot 2\quad =\quad 4\\ \\ 4\quad c{ m }^{ 2 }

The answer :

\boxed { 4\quad c{ m }^{ 2 } }
6 0
4 years ago
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Six times a number x and was added to 90 and the result is -42. What is the number​
ANTONII [103]

According to the question,

6x + 90 = -42

<h3>To Find:</h3>

The value of x.

<h3>Solution:</h3>

6x = -42 + 90

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or, x = 8

<h2>Answer:</h2>

The value of x is 8.

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