Mr. Becker just drove across the state to visit his daughter in college. For the first hour of his trip, his average speed was 38 mph. For the next five hours of his trip, his average speed was 60 mph. For the final two hours of his trip, his average speed was 49 mph.

To the nearest mph, what was Mr. Becker's average speed for the entire trip?
48 mph
55 mph
49 mph
25 mph

Question

Mr. Becker just drove across the state to visit his daughter in college. For the first hour of his trip, his average speed was 38 mph. For the next five hours of his trip, his average speed was 60 mph. For the final two hours of his trip, his average speed was 49 mph.

To the nearest mph, what was Mr. Becker's average speed for the entire trip?
48 mph
55 mph
49 mph
25 mph

anonymous · Answer

@greenlegodude57 @Kaylaaa @d3Xter @ilovebmth1234 @IsaiahCC100

anonymous · Answer

Just like last time add up 38, 60, and 49 then divide by 3. That will be your answer.

anonymous · Answer

is it 49 mph

shiraz14 · Answer

And remember to factor in the time travelled at each speed & round the answer - the exact answer is not one of the options.

anonymous · Answer

Yes @ctfxcfan1 that's correct.

shiraz14 · Answer

Use the formula Σfx/Σf to find the mean.

anonymous · Answer

actually you missed something the answer is 55

shiraz14 · Answer

(38*1 + 60*5 + 49*2) / 8 = 54.5 ~ 55mph (rounded to the nearest integer)

anonymous · Answer

thanks

shiraz14 · Answer

@ctfxcfan1 : You're welcome