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Ipatiy [6.2K]
3 years ago
14

Solve 3x+5y=27.5; 2x+3y=16 by elimination what is the solution?

Mathematics
1 answer:
jenyasd209 [6]3 years ago
3 0
I'm not 100% sure it's correct but I tried my hardest and it's a combination of elimination and substitution

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11. Square ABCD shown has sides of length 10 centimeters. The unshaded
enyata [817]

Answer:

21cm^2

Step-by-step explanation:

Area of Square-Area of semi circles (makes one full circle)

Squares Area = 100

LxW or (10x10)=100

Circle Area = 25/pi

/pi (radius)^2 or /pi(5)^2 = 25/pi

100cm^2-25cm^2 = 21.4601…cm^2 rounded to 21.5 cm^2

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How to find the repeating decimal of 29/13
8_murik_8 [283]
Divide 13 into 29:
2.230769230769....

13 ) 29.0000000
26
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3 0 this remainder repeats 6 steps further down
2 6
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39
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100
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78
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30 which will lead to a recurring decimal because we had remainder 3 at the beginning
6 0
3 years ago
The price of a wallet $31.95 and the sales tax is 7%.
EastWind [94]

Answer:

The Answer is D - $34.19

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
Of the three properties, reflexive, symmetric, and transitive that define the relation "is equal to," which one could also apply
yan [13]

Answer: Transitive property.

Step-by-step explanation:

First, for the equality we have:

Reflexive:

  For all real numbers x, x = x.

Symmetric:  

 For all real numbers x, y

 if x= y, then y = x.

Transitive:

 For reals x, y and z.

 if x = y, and y = z, then x = z.

Now, let's talk about inequalities.

first, the reflexive property will say that:

x > x.

This has no sense, so this property does not work for inequalities.

Now, the reflexive.

If x > y, then y > x.

Again, this has no sense, if x is larger than y, then we can never have that y is larger than x. This property does not work for inequalities.

Not, the transitive property.

if x > y, and y > z, then x > z.

This is true.

x is bigger than y, and y is bigger than z, then x should also be bigger than z.

x > y > z.

And this also works for the inverse case:

x < y and y < z, then x < z.

So the correct option is transitive property.

3 0
3 years ago
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