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Lilit [14]
3 years ago
12

82 is 20% of what number ​

Mathematics
2 answers:
Masja [62]3 years ago
8 0

Answer:

410

Step-by-step explanation:

Percentage of 20% of what number equals 82?

82 ÷ 20%=

82 ÷ (20 ÷ 100) =

(100 × 82) ÷ 20 =

8,200 ÷ 20 =

410;

Answer:

20% of 410 = 82

Signs: % percent, ÷ divide, × multiply;

Writing numbers: comma ',' as thousands separator;

Proof:

82 ÷ 410 =

0.2 =

0.2 × 100/100 =

0.2 × 100% =

(0.2 × 100)% =

20%

Aliun [14]3 years ago
4 0
20% of 410 equals 82... YOURE welcome
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Together, the areas of the rectangles sum to 30 square centimeters.
Juli2301 [7.4K]

Answer:

3x+2y

Step-by-step explanation:

Find the rectangles attached

Area of a rectangle = Length * Width

A = A1+A2

given

A = 30cm²

A1 = 3 * x

A1 = 3x

A2 = 2*y

A2 = 2y

Substitute

30 = 3x+2y

Hence the required equation is 3x+2y = 30

6 0
3 years ago
PLEASE PLEASE PLEASE HELP! Please explain step by step!! Please please I'll give enough points!
ArbitrLikvidat [17]
1)
The distance between points A and B is;
d= \sqrt{(x2-x1)^{2} + (y2-y1)^{2} } \\
d= \sqrt{(1-5)^{2} +(12+8)^{2}}\\ 
d= \sqrt{(-4)^{2} + (20)^{2}}\\
d=\sqrt{16+400}\\
d=\sqrt{416}\\
d=4\sqrt{26}, 
and if you wanted to you could measure out the legs of that hypotenuse using the slope between A and B, but I'm going to show you the easier way;
Δx = 4
Δy = -20
So from the midpoint, add 4 to the x-value and subract 20 from the y-value.
{(5+4),(-8-20)}
(9,-28) is the endpoint.

2)
Do the same thing as I did above;
d= \sqrt{(x2-x1)^{2} + (y2-y1)^{2} } \\ 
d= \sqrt{(5-(-3))^{2} +(5-(-4))^{2}}\\
d=\sqrt{(5+8)^{2}+(5+4)^{2}}\\
d=\sqrt{(13)^{2}+(9)^{2}}\\
d=\sqrt{169+81}\\
d=\sqrt{250}\\
d=5\sqrt{10}
So 5\sqrt{10} is the distance.

Sorry for the delay, life delayed me a ton ,:D
4 0
3 years ago
Is <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E%7B2%7D%7D%7B2%7D" id="TexFormula1" title="\frac{x^{2}}{2}" alt="\frac{x^{2}}
Xelga [282]
1/2 x^2
hope this helped you
8 0
3 years ago
Which of the following strategies is appropriate for factoring polynomials with 2 terms? A. determine if the polynomial is the s
Ksivusya [100]
"Determine if the polynomial is the difference of two squares" is the one among the following strategies that <span>is appropriate for factoring polynomials with 2 terms. The correct option among all the options that are given in the question is the second option or option "B". I hope that it has helped you.</span>
5 0
3 years ago
Read 2 more answers
Half of your baseball card collection got wet and was ruined. You bought 20 cards to replace some that were lost. how many did y
Volgvan

Answer:

60

Step-by-step explanation:

Given the following :

Half of baseball card got wet and was ruined

Number of baseball cards bought has replacement for the ruined cards = 20

Total number of baseball cards now = 50

The initial number of baseball cards =?

Let the initial number = y

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y = 30 * 2

y = 60

Hence, he started with 60 baseball cards.

7 0
3 years ago
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