Which linear equation has a negative slope? А y = 6 в у= y = – 50 y = 2x + 5
2 answers:
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Answer:
Step-by-step explanation:
Let
y --->Mala's age
x---> sister's age
we know that
---> equation A
so
The sum of ages of the sisters is
substitute equation A in the expression of the sum of ages
simplify