Iran 8kilometers in 20 minutes that cost me $10 how many miles would it be if cost is $30

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

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

a

step-by-step explanation: