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4 years ago

The p/q from of 6.7777777

Mathematics

1 answer:

fomenos4 years ago

3 0

Answer:

$61/9$

Step-by-step explanation:

We can use algebra to write the decimal in p/q form.

$x=6.7777777777777$

$10x=67.777777777777$

$10x-x=67.7777777777777-6.77777777777777$

$9x=61$

$9x/9=61/9$

$x=61/9$

It is now in p/q form.

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What’s the inverse equation?

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Answer:

The inverse is ((5-x)/4) ^ 1/3

Step-by-step explanation:

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x-5 =5-5-4y^3

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Divide each side by -4

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Take the cube root

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3 years ago

Expand and simplify (x- 3)(x + 5)

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Answer:

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Step-by-step explanation:

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3 years ago

Given that the diameter of a circle is 5 mm, find the radius of the circle.

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Step-by-step explanation:

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3 years ago

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goblinko [34]

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A chemical spill is leaking into a river flowing 2 3/4 miles per hour. How long will it take the chemicals to reach a town locat

ExtremeBDS [4]

Answer:

$6\frac{3}{11}=6.27$ hours.

Step-by-step explanation:

We have been given that a chemical spill is leaking into a river flowing 2 3/4 miles per hour.

To find the time taken by chemical to reach the town we will divide distance of town from the spill by distance covered by chemical spill in one hour.

$\text{Time taken by chemical to reach the town}=17\frac{1}{4} \div 2\frac{3}{4}$

Upon converting our mixed fractions into improper fractions we will get,

$\text{Time taken by chemical to reach the town}=\frac{69}{4} \div \frac{11}{4}$

Dividing a fraction with another fraction is same as multiplying first fraction by the reciprocal of second fraction.

$\text{Time taken by chemical to reach the town}=\frac{69}{4}\times \frac{4}{11}$

After cancelling out 4 we will get,

$\text{Time taken by chemical to reach the town}=\frac{69}{11}$

$\text{Time taken by chemical to reach the town}=6\frac{3}{11}$

$\text{Time taken by chemical to reach the town}=6.272727\approx 6.27$

Therefore, it will take the chemicals $6\frac{3}{11}=6.27$ hours to reach the town.

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4 years ago