Starting at home, ishaan traveled uphill to the gift store for 18 minutes at just 10 mph. he then traveled back home along the same path downhill at a speed of 30 mph. what is his average speed for the entire trip from home to the gift store and back?

"18 minutes at just 10 mph"

18/60 = 0.3

18 minutes = 0.3 hour

0.3 hour * 10 mph = 3 miles

The distance uphill was 3 miles traveled in 0.3 hour.

The trip downhill is the same distance, 3 miles. He traveled it at 30 mph.

(3 miles)/(30 mph) = 0.1 hour

0.1 * 60 = 6

The trip back was 3 miles in 6 minutes.

The total distance (to the store and back) was 3 miles + 3 miles = 6 miles.

The total time was 18 minutes + 6 minutes = 24 minutes = 24/60 hour = 0.4 hour

Speed = distance/time = (6 miles)/(0.4 hour) = 15 mph

15 mph

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation:

ur right ive taken the test

step-by-step explanation: