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laila [671]
3 years ago
14

Hi could some one please HELP me !!!

Mathematics
2 answers:
umka21 [38]3 years ago
4 0

Answer:

∠C = 36

Step-by-step explanation:

2x + 2x +6x = 180

10x = 180

x = 18

∠C = 2x = 36

Feliz [49]3 years ago
3 0
2x+2x+6x= 180
10x=180
X= 18
Angle C = 36
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The tens digit is twice the units digit. Reverse the digits, add 2 and the new number is 34 less than the original number. Find
inna [77]

Answer:

Step-by-step explanation: X and Y represent the digits.

The tens digit is twice the units digit.

The digit in the Tens place has 10× its base value, so we can set up equations to model the information given.

10x +y 10y +x are Original & Reversed numbers

X = 2y means the Tens digits is twice the units digit.

10y + x +2 = 10x +y - 34 models the statement: The reversed number plus two is 34 less than the original number.

Substitute 2y for x to solve for y

10y +2y +2= 10(2y) + y -34

Distribute and combine like terms

12y + 2 = 20y +y - 34

34 +2 = 21y -12y

36 = 9y Divide both sides to find the value of y.

4 = y

X = 2(4) Substitute 4 for y to find x

X = 8

Original number: 84 Reversed number: 48

Substitute into equation model

48 +2= 84 -34

50 = 50

True!

3 0
3 years ago
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Y_Kistochka [10]
The answer is 280 degrees.
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2 years ago
Identify square root of 3 as either rational or irrational, and approximate to the tenths place.
dmitriy555 [2]

Answer:

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Step-by-step explanation:

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