Alexa is making a recipe that requires 1 cup of water and 4 cups of flour. which of the following combinations shows the same ratio to water to flour
a. 2 cups of water to 3 cups of flour
b. 2 cups of water to 4 cups of flour
c. 2 cups of water to 8 cups of flour
d. 3 cups of water to 6 cups of flour

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.