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anzhelika [568]
3 years ago
12

If 3(11x-18y)=6(x+y)-3x-10y what is the ratio of x to y?

Mathematics
1 answer:
exis [7]3 years ago
7 0

Answer: 3:5

Step-by-step explanation:

33x-54y=6x+6y-3x-10y

33x-54y=3x-4y

30x=50y

3x=5y

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228000(1.03) exponential or decay
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growth

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In the triangle below, what is tan θ?
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Tan theta = 12/5

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Witch mixed number shows the result of 89 divided by<br> 35
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89/35 = 2 and 19/35

Step-by-step explanation:

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3 years ago
In ΔRST, s = 620 cm, r = 210 cm and ∠R=17°. Find all possible values of ∠S, to the nearest 10th of a degree.
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Answer:

1843:6754.9709254546.,657675

Step-by-step explanation:

4 0
3 years ago
2)<br> A circle has a radius of 8 cm. What is its circumference?<br> 8 cm
egoroff_w [7]

Answer

16π cm ≈ 50.2655 cm

Step-by-step explanation

To find the circumference of a circle, we can use the equation C = 2πr.

C stands for the circumference while r stands for the radius. We can see that there is a proportional positive linear relationship between radius and circumference for all circles, and that to find circumference when we have a radius value, we multiply the radius value by 2π.

The value of π, also called pi, is a constant and is the ratio of a circle's circumference to its diameter (the diameter is twice the radius, hence the 2 in the equation). Note that π is a constant and applies to all circles because all circles are similar.

Since we know the value of r, or the radius, given as 8 cm in the question, we can plug this value into the equation C = 2πr from earlier.

C = 2πr (plug in 8 cm for the radius)

C = 2π * 8

C = 16π cm

Since the radius is in units of cm (centimeters), the circumference is also in units of cm (centimeters).

16π cm is the exact value of the circumference. However, if we want this circumference in decimal form, we would multiply 16 by the decimal form of π which is approximately 3.1416. Note that π actually has an infinite amount of decimals and that this 3.1416 is actually a rounded π value

C = 16π

C ≈ 16 * 3.1416

C ≈ 50.2655 cm rounded to four decimal places

6 0
3 years ago
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