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Diano4ka-milaya [45]
3 years ago
14

Simplify 4c - 5c + 6c

Mathematics
1 answer:
elixir [45]3 years ago
3 0
Really !  Why do you let math scare you like that ? ?

How about this:       (4 cows) - (5 cows) + (6 cows)

I'll bet you have no problem seeing that it's  5 cows .

So why do you totally clutch when they're just  C's  instead of cows ? ?
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The price of an item yesterday was 130. Today, the price fell to 91 . Find the percentage decrease.
Shalnov [3]

Answer:

30%

Step-by-step explanation:

130-91=39

39 / 130 =0.3

0.3x100=30

and you got the answer!

7 0
2 years ago
Read 2 more answers
A semi-circle window can be used above a doorway or as an accent window
anzhelika [568]

A semicircle is a part of a circle, and it is referred to as half of a given circle. Thud the area of the <em>semi-circle</em> window is 982 in^{2}.

A circle is a shape that is <u>bounded</u> by a <em>curved</em> path which is referred to as the <em>circumference</em>. Some <u>parts</u> of a circle are radius, diameter, sector, arc, semi-circle, circumference, etc.

A <em>semicircle</em> is a <u>part</u> of a <u>circle</u>, and it is referred to as <em>half </em>of a given <em>circle</em>.

such that:

<em>Area</em> of a <u>circle</u> = \pi r^{2}

and

area of a <u>semicircle</u> = \frac{\pi r^{2} }{2}

where: r is the <u>radius </u>of the <u>circle</u>, and \pi is a <u>constant </u>with a value of \frac{22}{7}.

Thus from the given question, it can be inferred that;

r = \frac{50}{2}

 = 25

r = 25 in

Thus, the area of the<em> semi-circle</em> can be determined as;

area of the <em>semi-circle</em> = \frac{1}{2} * \frac{22}{7} * 25^{2}

                                      = 982.1429

area of the semi-circle = 982.14 in^{2}

The area of the <em>semi-circle</em> window is approximately 982 in^{2}.

for more clarifications on the area of a semi-circle, visit: brainly.com/question/15937849

#SPJ 1

8 0
2 years ago
A number is doubled and then the product is increased by 6. This sum is then multiplied by -3, and the result is 54 greater than
34kurt

Answer:

  • -24

Step-by-step explanation:

Let the number be x

<u>Then we have the equation</u>

  • (2x + 6)*(-3) = -3x + 54
  • -6x - 18 = -3x + 54
  • 6x - 3x = -18 - 54
  • 3x = -72
  • x = -72/3
  • x = - 24
8 0
3 years ago
Read 2 more answers
Someone plz help jkbb;jkbh n
chubhunter [2.5K]

Answer:

A

Step-by-step explanation:

Percent go on 1 side

125

----       125% out of 100%

100

35 next to 125% due to the unknown amount of votes on the other side

P goes under 3 and the answer is A

3 0
3 years ago
Read 2 more answers
Point A is located at (-1.4). Point B is located at (3,2). What is the slope of the line that passes through these two points (M
Scorpion4ik [409]

Answer:

Y = -1/2x + 7/2

Step-by-step explanation:

slope = -1/2

3 0
3 years ago
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