Answer:
One solution: x=6, y=7. (6, 7).
Step-by-step explanation:
y=x+1
y=2x-5
-----------
x+1=2x-5
1=2x-x-5
x-5=1
x=1+5
x=6
y=6+1=7
Answer:
Solving below systems of equations using linear combination method we get
x = -7
y = 5
Step-by-step explanation:
Linear combinations which is also commonly known as the addition method is used for solving the system of equations without graphs
Step 1: arrange the equation in standard form
2x + 3y = 1----------------------(1)
2x + y = -9--------------------(2)
Step 2: Set one of the coefficient to opposite sides
So lets multiply eq(2) with negative sign, so
2x + 3y = 1
-2x - y = 9
Step 3: Perform Addition
2x + 3y = 1
-2x - y = 9
-----------------------
0x +2y = 10
--------------------------
Step 4: Solve for y
2y =10

y = 5
Step 5: Substitute y value in equation(1)
2x + 3(5) = 1
2x + 15 =1
2x = 1-15
2x =-14

x = -7
Answer:
use the symmetric and transitive properties of congruence
Step-by-step explanation:
(1) ∠ABC ≅ ∠DEF and ∠GHI ≅ ∠DEF; given
(2) ∠DEF ≅ ∠GHI; symmetric property of congruence
(3) ∠ABC ≅ ∠GHI; transitive property of congruence (QED)
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<em>Additional comment</em>
The transitive property says if A≅B and B≅C, then A≅C. We used the symmetric property to swap sides of the congruence symbol with DEF and GHI to put the statement in the form to match the transitive property.
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You will note we used the form ...
(statement number) statement; reason
with statement and reason separated by a semicolon.
Answer:
18.95 x 4 =75.8
Step-by-step explanation:
James bought 4 t-shirts for 18.95, so you would multiply it and that would give you a sum of 75.8 or you could also add 18.95 , 4 times to get 75.8.