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sergey [27]
3 years ago
12

The reciprocal of 2/3 is 3/2. If the reciprocal of 4x/5 is 1/20, what is x?

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
6 0

Since 4x/5 is the reciprocal of 1/20, that means that 4x/5 = 20/1, or 20. Using this info, we can form the equation \frac{4x}{5}=20 . From there we can solve for x.

Firstly, multiply both sides by 5: 4x=100

Next, divide both sides by 4 and your answer will be x=25

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Mark and Henry are marking exam papers. Each set takes Mark 25 minutes and Henry 1 hour. Express the times Mark and Henry take a
iogann1982 [59]
<h2>Answer: The ratio in its simplest form is 5:12.</h2>

Step-by-step explanation: Since we have given that

Time taken by Mark = 25 minutes

Time taken by Henry = 1 hour

As we know that

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So, Ratio of time of Mark and Henry would be

Mark's time   :   Henry's time

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NeX [460]

Step-by-step explanation:

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3 0
3 years ago
A scalene triangle has the lengths 6, 11, and 12. Keyla uses the law of cosines to find the measure of the largest angle. Comple
ss7ja [257]

Answer:

Y\approx 84^\circ $(to the nearest angle)

Step-by-step explanation:

The lengths of the sides of the scalene triangle are 6, 11, and 12.

We want to use the law of cosines to find the largest angle.

Note that the largest angle is always opposite the largest side.

Therefore:

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The largest angle is 84 degrees to the nearest angle.

3 0
4 years ago
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