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3 years ago

10

A snake slithers 2/9 mile in 4/5 hour.

2 answers:

kykrilka [37]3 years ago

8 0

Answer:

Your answer is A. 8/45 mph

Step-by-step explanation:

I can provide a more detailed answer in a few but for starters, you can rule out answers C & D because that would be the fastest snake alive to be able to travel that far in such a short time.

That leaves a choice between A or B. Using the common denominator method to switch 2/9 and 4/5 to x/45, this makes the most sense. When comparing the 8/45 mph to the actual question, it's very reasonable.

I'll come back in a few and provide the actual math. I'm late for the doctor.

Good luck! Hope this helps!

9966 [12]3 years ago

6 0

Answer:

B: 5/18 miles per hour

Step-by-step explanation:

1. multiply the fractions by the reciprocal

2/9 × 4/5 = 10/36

2. Divide answer by common multiple which is 2

10/36 ÷ 2 = 5/18

5/18 miles per hour is the snakes speed

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Read 2 more answers

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Answer:

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Step-by-step explanation:

Measure of the interior angle of a regular polygon = $\frac{(n - 2)\times180}{n}$

From the picture attached,

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Interior angle (∠BAF) of the given polygon = $\frac{(6 - 2)\times 180}{6}$

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sin(30°) = $\frac{\text{Opposite side}}{\text{Hypotenuse}}$

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By applying cosine rule in ΔABG,

cos(30°) = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

= $\frac{AG}{AB}$

AG = AB[cos(30°)]

= $2\times \frac{\sqrt{3} }{2}$

= $\sqrt{3}$

AC = 2(AG)

= 2√3

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= $\frac{1}{2}(AC)(BG)$

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