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3 years ago

Please answer asap

Mathematics

2 answers:

SCORPION-xisa [38]3 years ago

7 0

Answer:

C) 5x-70=105

Step-by-step explanation:

As marked in the graph, angle 105 and angle (5x-70) equal to each other because they are vertically opposite angles therefore we have equation C)

dezoksy [38]3 years ago

5 0

C) 105 = (5x – 70)
Seems correct

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Roman55 [17]

Answer:

$\frac{16}{9}$ hours

Step-by-step explanation:

Whenever 2 quantities (suppose a and b) are inversely proportional to each other, we can write an proportionality equation (with k as proportional constant) as:

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Since, here t is INVERSELY PROPORTIONAL to r, we can say:

$t=\frac{k}{r}$

Firstly, we have t = 2 hour and r = 40 mph, so we find k:

$t=\frac{k}{r}\\2=\frac{k}{40}\\k=2*40\\k=80$

Now, secondly, we have r = 45 and k = 80, we need to find t:

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2 years ago

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Whitepunk [10]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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