Can you show me how to do this math problem please?

Question

The 1st American in space was Alan B. Shepard jr. His flight in 1961 lasted only 22 seconds more than a quarter of an hour. How many seconds was he in the air?

i think it is .88

Answer 1

First, take the largest unit given: an hour. They relate it to a quarter of that: 15 minutes. They also say it's 22 seconds more than that. So we take what we know, convert it to the right units, and then do the arithmetic.
15 min*60 sec/min = 900 sec. 900 sec + 22 sec = 922 sec.

Answer 2

15 minutes in a quarter hour
times 60 seconds in a minute
+ 22 seconds
15 x 60 + 22 =922 seconds in space

Answer 3

OK, so you have a quarter (1/4) hr + 22 sec, and you want a total in sec.
This is a unit conversion problem.
We know there are 60 seconds in a minute, and 60 minutes in an hour. First, we'll turn that 1/4 hour into minutes...

(1 hr / 4) *60min/1 hr
The hours cancel out, leaving 15 (60/4) minutes. Now, we can change the minutes into seconds...
(15min/1) * (60sec/1 min)
This time, the "min" labels in the numerator and denominator cancel out, leaving 900 (60*15) seconds. Now, you can go and plug in that 900 seconds for 1/4 hour, since we know they're equal.
900 sec + 22 sec = 922 sec

Answer 4

15 minutes in a quarter of an hour

15 min x 60 seconds/minute = 900

+ 22 seconds more = 922

Answer 5

Convert 1/4 hour to seconds:
1/4 hour x 60 min/hour x 60 sec/min = 900 seconds

Or think of how many minutes in a quarter hour (15 minutes right?). 15 minutes x 60 sec/min is 900 seconds.

22 seconds more than this is 900 + 22

(They asked for seconds, so you know the answer is going to be at least 22 seconds... not sure why you thought 0.88 would be correct?)

The answer is:
922 seconds.

Answer 6

if a quarter of an hour is 15 mins, and he lasted 22 seconds longer then that, the answer would be 922.....i believe...check the work tho...theres 60 seconds in a min, 15*60=900...22 seconds after that would be 922

Answer 7

15 minutes and 22 seconds so, 60x15 = 900 + 22 = 922 seconds

Answer 8

15*60+22

Answer 9

15*60=900
900+22=922

Answer 10

1/4 hour = 1/4*60 minutes = 15 minutes = 60*15 seconds = 800 seconds = 822 seconds - 22 seconds.

822 seconds