Question

ANSWER MY QUESTIONS PLEASE .........? A paddleboat can move at a speed of 14 kilometers per hour in still water. The boat is paddled 10 kilometers downstream in a river in the same time it takes to go 5 kilometers upstream. What is the speed of the river? Round your answer to the nearest tenth. AND A woman drives an SUV that gets 13 miles per gallon (mpg). Her husband drives a hybrid that gets 60 mpg. Every week, they travel the same number of miles. They want to improve their combined mpg. They have two options on how they can improve it.

Option 1: They can tune the SUV and increase its mileage by 1 mpg and keep the hybrid as it is.


Option 2: They can buy a new hybrid that gets 85 mpg and keep the SUV as it is.


Compute and state the combined mpg for each option. Round your answers to the nearest tenth. Then tell which option will give a better combined mpg.

Answer 1

Explanation:

the suv question the first option would make the suv go from 13 mpg to 14 mpg and add 14 to 60 to get 74 and divided by 2 to get 37 is their average mpg

Options two would make the hybrid 85 mpg and the suv still 13 add them together to get 98 and divide them by 2 to get 49

Option 2 will give more mileage

paddle boat question

10/14+x=5/14-x

Cross multiply

10(14-x)=5(14+x)

140-10x=70+5x

70=15x

70/15=x

X=4.7 is the speed of the current

Please don’t quote me on this paddle boat one XD

Hopes this helps