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barxatty [35]
3 years ago
11

Solve the system using elimination -x+5y=13 x-y=15

Mathematics
1 answer:
zlopas [31]3 years ago
7 0

Answer:

the value of x= 22 and y = 7

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Need help ASAP!!
Helen [10]
The answer is D) 11/21

Your welcome
4 0
3 years ago
Please HELP me. I've been trying to solve this question for an hour but I didn't find any answer.
Marta_Voda [28]
Volume of a cylinder is formulated as: π·r²h
Surface area of a cylinder is formulated as: 2π·rh + 2π·r²

So, for a:
Volume = π·5²·12 = π·25·12 = 300π
Surface area = 2π·5·12 + 2π·5² = 120π + 50π = 170π

And it's essentially the same process for the other questions.
5 0
3 years ago
7men have 7wives, each man and each wife have 7children what is total number of people​
UkoKoshka [18]

Answer:

63

Step-by-step explanation:

If 7 men have 7 wives, that means they have 1 wife each, so that will be 7+7=14. Then each wife has 7 children, so that will be 7×7=49, next we add the children to the men and the wives and get 49+14=63. So the total number of people is 63.

7 0
3 years ago
Given ABCE is a rectangle, D is the midpoint of CE<br> Prove AD =~ BD
Bas_tet [7]

Since the congruent operator is ≅ and since AD is congruent to BD, I'm going to assume that you want to prove that AD is congruent to BD.    
1. DE is equal to CD by definition since D is the midpoint of CE.  
2. AE is equal to BC since opposite sides of a rectangle are equal to each other.  
3. Angle AEC is equal to Angle BCE since all angles in a rectangle are right angles and all right angles are equal to each other.  
4. Triangles ADE and BDC are congruent to each other because we have SAS congruence for both triangles.  
5. AD is congruent to BC since they're corresponding sides of congruent triangles.
5 0
3 years ago
If the endpoints of the diameter of a circle are (6, 3) and (2, 1), what is the standard form equation of the circle? A) (x + 4)
AURORKA [14]
 ( )( ) 1 4 64 2 2 x + + y + = 2. ( ) 3 ( 1) 32 2 2 x − + y + = 3. Center (1, 1); radius 2 4. Center (0, -3); radius 7
3 0
4 years ago
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