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Tomtit [17]
3 years ago
11

A store manager is marking down microscopes from $1,000 to $620. What is the discount, as

Mathematics
1 answer:
vfiekz [6]3 years ago
6 0
Your answer will be 38%, because you think of 100$ being as 100% and 620$ as being 62% and subtract 100-62= 38% it doesn’t work all the time but for this specific one it will, hope this helps.
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A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 86m long and 64m wide. F
KIM [24]

To solve this problem, we have to find the area of the semi circles and the area of the rectangle and add them up together.

The area of the field is equal to 8719.36m^2

<h3>Area of the Field</h3>

Let us start by finding the area of the rectangle.

Data;

  • width = 86m
  • length = 64m

Area of a rectangle is given as

a = length * width \\a = 86 * 64\\a = 5504m^2\\

The area of the rectangle is 5504m^2

Area of the semicircle

The formula of a semi circle is given as

A = \frac{1}{2} \pi r^2

But since we have two semi circles here, we can simply multiply it by two and the formula becomes

A = 2 * \frac{1}{2} \pi r^2\\A = \pi r^2

But in the question, we have the diameter of the semi circle as the length of the rectangle.

radius = \frac{diameter}{2} \\radius = \frac{64}{2} \\radius = 32m

The radius of the semicircle is 32m

Area of the semicircle is

A = \pi r^2\\A = 3.14 * 32^2\\A = 3215.36m^2

The area of the field is

area of field = 3215.36 + 5504\\area = 8719.36m^2

The area of the field is equal to 8719.36m^2

Learn more on area of rectangle and semi circle here;

brainly.com/question/2906652

#SPJ1

7 0
2 years ago
Max picked out an old Star Wars puzzle to put together. Out of the 250 pieces, he was missing 15.
Lunna [17]

Answer:

ummm... like 6% Convert fraction (ratio) 15 / 250 Answer: 6%

Step-by-step explanation: i have brain i use it some times

4 0
3 years ago
Which angle corresponds to the point (-1,0) on the Unit Circle?
erastova [34]
Either positive or negative 180°. 
6 0
3 years ago
Which expression can be used to find the sum of the polynomials?<br><br> (9 – 3x2) + (–8x2 + 4x + 5)
timama [110]

Answer:

It may not be right but try D.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
PLEASE HELP!!!! asap
Talja [164]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
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