Find the distance, d,across the river. Assume that the ratio of d to 90ft is the same as the ratio of 100ft to 50ft
Find the distance d. Assume that the ratio of d to 90 ft is the same as the ratio of 50 ft to 30 ft.
To find the distance, d, across the river, we can use the concept of proportions. The given information states that the ratio of d to 90ft is the same as the ratio of 100ft to 50ft. We can set up the proportion as follows:
d / 90ft = 100ft / 50ft
To solve for d, we can cross multiply and then divide:
d * 50ft = 90ft * 100ft
d * 50ft = 9000ft
Now, we can solve for d by dividing both sides of the equation by 50ft:
d = 9000ft / 50ft
d = 180ft
Therefore, the distance across the river, d, is 180 feet.
18
d/90 = 100/500
Solve for d.