sofia can paint a house in 10 hours juana can paint the same in 9 hours how long would it take them if they worked together

Mathematics

1 answer:

lubasha [3.4K]4 years ago

7 0

If Sofia and Juana worked together I would take them 1 hour

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Write a real-world problem that could be represented by the inequality. 3x + 6 > 27

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1.The sum of thrice a certain number and six is greater than twenty seven.

2. Three times a certain number added to six the result is greater than twenty seven.

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The inequality whose word problem to be written is 3x + 6 > 27

Let x be a certain number.

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1.The sum of thrice a certain number and six is greater than twenty seven.

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Step-by-step explanation:

When calculating distances using perpendicular angles, we use trig functions such as Sin, Cos, and Tan.

Sine is defined in a perpendicular triangle as the ratio of the opposite side to the angle over the hypotenuse.
Cosine is defined in a perpendicular triangle as the ratio of the adjacent side to the angle over the hypotenuse.
Tangent is defined in a perpendicular triangle as the ratio of the opposite side over the adjacent side.

Because our angle and know side value are across from each other and we need to know the hypotenuse, we chose to use Sine.

We set up the equation $sin (68) = \frac{18}{h}$ .

We isolate h by multiplying h across the equal sign and dividing sin (68) across as well. $sin (68) = \frac{18}{h}\\hsin (68) = \frac{18}{h}*h\\hsin (68) = 18\\\frac{hsin (68)}{sin (68)} =\frac{18}{sin (68)} \\$