ok i did this problem BUT would like to know if its right..
Kristi jogged for 3/5 of an hour, swam for 1/2 of an hour, and rode her bicycle for 3/4 of an hour. How long did she exercise?
i got
1 and 17/20
am i right?
2006-11-22 04:09:13 · 13 answers · asked by BlueEyes4172004 1 in Science & Mathematics ➔ Mathematics
THANKSSSSSSSSSSSSSS
2006-11-22 04:33:43 · update #1
1/5 of an hour is 12 min, so 3/5 would be 36 min
1/2 of an hour is 30 min
3/4 of an hour is 45 min
so total time is 36 + 30 + 45 = 111 min or 111/60 = 1.85 hrs or 1 hr 51 min or 1 and 17/20 hrs
you are right!
2006-11-22 08:18:17 · answer #1 · answered by Goyo 6 · 0⤊ 0⤋
3/5 +1/2 + 3/4
= 12/20 + 10/20 + 15/20
= 37/20
=1+17/20
Yes
2006-11-22 12:18:54 · answer #2 · answered by Andy M 3 · 0⤊ 0⤋
You are exactly right! A total of 111 minutes of exercise, which is 1.85 hours or 1 hour and 17/20 of an hour.
2006-11-22 12:19:12 · answer #3 · answered by Old Man 1 · 0⤊ 0⤋
(3/5) + (1/2) + (3/4)
(12/20) + (10/20) + (15/20) = 37 / 20 = 1 and 17/20
You are correct! Great job!
2006-11-22 12:19:28 · answer #4 · answered by Anonymous · 0⤊ 0⤋
yes you are correct !!!~!
Here is another way to do it !
mult. all the dominators by each other to get the product of 40 use
this new dominator io add the fractions
24 /40
+ 20/40
+30/40
-----------
74/40
comvert this to a ddecimal
1.85
which equaals to 1 17 / 20
2006-11-22 12:28:26 · answer #5 · answered by Anonymous · 0⤊ 0⤋
1 and 17/20 appears to be correct
2006-11-22 12:16:21 · answer #6 · answered by pahump1@verizon.net 4 · 0⤊ 0⤋
Exactly right, and I'd much rather check what someone has done than just do it for them!
2006-11-22 12:18:29 · answer #7 · answered by Sangmo 5 · 0⤊ 0⤋
Yes.
2006-11-22 12:15:26 · answer #8 · answered by TitoBob 7 · 0⤊ 0⤋
yes... or 1 hr and 51 min ha ha ... 1and 51/60
2006-11-22 12:20:03 · answer #9 · answered by Zorlinda 6 · 0⤊ 0⤋
right
2006-11-23 01:12:57 · answer #10 · answered by sam 3 · 0⤊ 0⤋