A boat travels upstream from Point A to Point B in 5 hours. The retum trip takes only 2.5 hours because
the boat travels 4 miles per hour faster downstream
due to the current. How far does the boat
travel upstream?
The boat travels
miles upstream.

Explain why the factor 1.5 is broke. into two numbers in the model.

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?