Answer:
x(5+x)
Step-by-step explanation:
A long session lasts 50 minutes.
Step-by-step explanation:
Let,
Duration of long session = x
Duration of short session = y
According to given statement;
3x+4y=270 Eqn 1
each long session lasts twenty minutes longer than the short session.
x = y + 20 Eqn 2
Putting value of x from Eqn 2 in Eqn 1
Dividing both sides by 7
Putting y = 30 in Eqn 2
A long session lasts 50 minutes.
Keywords: linear equation, substitution method
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4x since 4 times legnth of 1 sides is perimiter of square
y=4x
Equal? I don’t rlly understand what this means
Answer:
2674800000
Step-by-step explanation:
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