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statuscvo [17]
3 years ago
15

At the local video game store, a popular game went from $120 to $85 in a weeks time. What is the percent decrease of the item? R

ound to the nearest whole percent. Group of answer choices
Mathematics
1 answer:
Svetllana [295]3 years ago
6 0

Answer: 29%

Step-by-step explanation:

The game went from the price of $120 to $85.

In calculating percentage decrease, use the following formula:

= (New Price - Old price) / Old price

= (85 - 120) / 120

= -35 / 120

= -29%

<em>Price therefore decreased by 25%</em>

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Can some one help me with this math problem and explain their self's as well?
yaroslaw [1]

Answer:

20 side polygon: 180 x (20 -2)

Step-by-step explanation:

A n side polygon can be divided into n-2 triangles

each triangle has 180°

n-2 triangles have 180 x (n-2) degrees

3 0
3 years ago
A shoe store sells a specific pair of shoes in 3 colors, 4 designs, and 8 sizes. how many different shoes are available?
Arada [10]
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5 0
3 years ago
0.63 =<br> How do you convert this into a fraction
ohaa [14]

Answer:

63/100

Step-by-step explanation:

first, since the decimal goes to the hundredths place, you would put it into a fraction as 63/100. Then you see if you can simplify it from there. It cannot be simplified, so your answer will just be 63/100.

4 0
3 years ago
Kai spent 90% of his money on a laptop that cost $423. Does he have enough money left to buy a scanner.explain
GarryVolchara [31]
Okay, so:

You would want to find what 1/10 of the laptop costs. That would be the 10% of money left in Kai's account.

So,

423*.1

(you have to turn the percentage into a decimal; 10%= .10


423*.1= 42.3

So, Kai has 42.3 dollars left to buy a scanner. He only has 10% of his bank account left to spend on the scanner.

I hope this helps!
~cupcake
7 0
3 years ago
NEED HELP PLEASE!
USPshnik [31]

Answer:

(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16

Step-by-step explanation:

Complex numbers identity:

The complex numbers identity is:

i^2 = -1

Square of the sum:

(x + y)^2 = x^2 + 2xy + y^2

In this question:

(x + (3+5i))^2

x^2 + 2x(3+5i) + (3+5i)^2

x^2 + 6x + 10xi + 9 + 30i + 25i^2

x^2 + 6x + 9 + (10x+30)i - 25

x^2 + 6x + (10x+30)i - 16

So

(x + (3+5i))^2 = x^2 + 6x + (10x+30)i - 16

5 0
3 years ago
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