A boat travels 20 miles downstream and then 40 miles upstream at a constant speed of 30 miles per hour. The time the boat travels upstream is 1.5 hours longer than the
time it travels downstream. What is the average speed of the current? Write and solve a
rational equation to answer the question.

x> 6

step-by-step explanation:

8x+8> 7x+14

8x-7x> 14-8

x> 6

5 pm

step-by-step explanation:

answer: an 8-foot rope is tied from the top of a pole to a

stake in the ground, as shown in the diagram

below

step-by-step explanation:

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2