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2 years ago

The question says find the circumference of the circle I’m the circle it’s written 12cm

Mathematics

1 answer:

lord [1]2 years ago

6 0

Answer:

37.69

Step-by-step explanation:

Since the diameter is 12, the Radius is 6

Circumference equation: 2pi(r)

So we plug it in

2pi(6)

That gives us 37.699

If you need to round, then it would be 37.7.

I really hope this helps!!!

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9. An article was sold at a profit of 12%. Had it been sold for Nu 80 more, there would be a profit of

Kamila [148]

Answer:

The cost price of the article was Nu 1,000

The original selling price was Nu 1,120

The second selling price was Nu 1,200

Step-by-step explanation:

System of Equations

Let's call:

x = Original selling price of the article

y = Cost of the article

The first condition implies that the difference between the selling price and the cost price (the profit) is 12%. Recall the profit % is always calculated with respect to the cost, that is, the profit at the first condition is:

0.12y = Original profit

Setting up the equation, we have:

$x-y=0.12y$

The second condition states the selling price is 80 Nu more than before, that is:

x+80= Second selling price of the article

y = Cost of the article (it doesn't change)

The profit of this condition is 20%, thus:

0.2y = Second profit

This produces a second equation:

$x+80-y=0.2y$

Let's put both equations together to form a system of equations:

$x-y=0.12y$

$x+80-y=0.2y$

Operating on both equations:

$x=1.12y$

$x=1.2y-80$

Equating both equations, we have an equation with only y's:

$1.12y=1.2y-80$

Subtracting 1.2y on each side:

$1.12y-1.2y=-80$

Operating:

$-0.08y=-80$

Solving:

$\displaystyle y=\frac{-80}{-0.08}=1,000$

The cost price of the article was Nu 1,000

b) The selling price of the article will be calculated in both cases:

Original selling price: x=1.12y= 1.12*1000=1,120

The original selling price was Nu 1,120

The second selling price was x+80=1,200

The second selling price was Nu 1,200

8 0

3 years ago

Plz help and Thank you :/

marin [14]

Answer:

ok that is correct because you start with 25 and then add 9 each week so 25+9w

Step-by-step explanation:

8 0

3 years ago

How can the iready test is a real test?

Leona [35]

It isn't a real test. I do believe it helps you with your grade and the classes you'll take next year.

3 0

3 years ago

Which is one of the transformations applied to the graph of f(x) = x2 to change it into the graph of g(x) = –3x2 – 36x – 60? The

alexandr402 [8]

Answer:

It is actually A

Step-by-step explanation:

1. E

2.D

3.G

4.E

5.N

6.U

7.I

8.T

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7 0

3 years ago

Read 2 more answers

Is a pentagon a polygon

andreyandreev [35.5K]

Answer:

Yes

Step-by-step explanation:

A polygon is a 2D figure with at least three straight sides and angles. A pentagon has five sides and angles, so it qualifies as a polygon.

I hope this helped ^^ Good luck

3 0

3 years ago