Solve each system by substitution. y=2x-1 3x+8y=11

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Step-by-step explanation:

X=1 y=1

y=2x-1 ---(1)

3x+8y=11 ---(2)

sub (1) into (2)

3x+8(2x-1)=11

3x+16x-8=11

19x=19

X= 1

sub X= 1 into (1)

y= 2(1)-1

y=1

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

step-by-step explanation:

what does 'mandy have ben 780 bottle caps. ' mean?