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2 years ago

A pond is being filled by two water lines.

Mathematics

1 answer:

nadya68 [22]2 years ago

6 0

Answer:

2hr

Step-by-step explanation:

Let x be the flow rate of the first line in kg/hr

Let y be the flow rate of the second line kg/hr

Let V be the volume of the pond. in kg

(2 hr)(x kg/hr) = V kg

(1 hr)(x + y kg/hr) = V kg

x + y = 2x

y = x

as the flow rates of the two lines is identical, the second line alone takes two hours to fill the pond.

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Answer:

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Answer:

m∠DEC = 78°

Step-by-step explanation:

Given information: AC = AD, AB⊥BD, m∠DAC = 44° and CE bisects ∠ACD.

If two sides of a triangles are congruent then the opposite angles of congruent sides are congruent.

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$m\angle ACD=68$

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$m\angle ACE=m\angle DCE=\dfrac{\angle ACD}{2}$

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Use angle sum property in triangle CDE,

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