christina921 christina921

15-10-2016
Mathematics

contestada

A sailboat travels 48 miles upstream in 6 hours and return back downstream in 4 hours. What is the speed of the boat in still water?

Respuesta :

15-10-2016

Let s be the speed of the boat in still water.
Let c be the speed of the current.
s - c = 48/6 = 8
s + c = 48/4 = 12
Adding the two equations, we get:
2s = 20
s = 10
The answer is 10 miles per hour.

Answer Link

Otras preguntas

what is the effect of the first crusade

Estimate the sum of 412.02 and 513.87 to the nearest whole number? A. 926 B. 925.89 C. 930 D. 935

What does the endosymbiont theory explain about the origins of plant and animal cell

Which two values of x are roots of the polynomial below x^2 - 11x + 13

Describe the relationship between n and 4 that will make the value of the expression 7xn4greater than7

Using pressure and density of fluids. As you walk across a field covered with deep snow, you keep sinking. What could you do to prevent this? Explain your reaso

The force applied to the physics cart is manipulated. This is the variable. The cart accelerates due to the force applied to the cart. Acceleration is therefore

Based on Archimedes' principle, the greatest buoyant force an object can experience in water is determined by which quantity? A. The object's chemical propertie

Plzzz help me asap plzzz someone the question is on the picture

why did the mexicam government allow americans to settle in texas?