**Answer:**

14.91288 miles

**Step-by-step explanation:**

We can use a proportion to solve this problem. Put the distance over the cost. We want our answer in miles so we need to convert 8 kilometers to miles. 1 km = .621371 miles

8 km * .621371 miles/ 1 km = 4.971 miles

4 .971 miles x miles

--------------------- = ------------------

10 dollars 30 dollars

Using cross products

4.971 * 30 = 10x

149.1288= 10 x

Divide by 10 on each side

149.1288/10= 10/10 x

14.91288 =x

The coefficient of Y is 6

**Answer:**

**Step-by-step explanation:**

1, sec theta * sin theta = 1/cos * sin = sin/cos =tan theta

2. cosec theta * cos theta = 1/ sin * cos = cos/sin = cot theta

3, tan theta * cosec theta =sin/cos * 1/sin = 1/cos

4, cot theta * sec theta = cos /sin * 1/cos= 1/sin

5, 1 - cos^2 theta = sin ^2 theta

6, sec^2 theta - 1 =tan ^2 theta

7 , cosec^2 theta - cot^2 theta = 1

8, 1 - sin^2 theta = cos^2

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**Answer:**

**Step-by-step explanation:**

6f + 9g = 3g + f

6f - f = 3g - 9g

5f = - 6g

Answer: X = 12

Explanation:

6x + 7 = 18x - 17

7 = 12x - 17

24 = 12x

X = 2