my home work is like this, i have 21 lbs and 7oz. i have to reach to 30lbs what kind of operation do i have to do to round up to the total of 30lbs?
2007-02-22 16:24:52 · 7 answers · asked by ISIDRO M 3 in Science & Mathematics ➔ Mathematics
there are 16 oz in a pound
2007-02-22 16:33:06 · answer #1 · answered by Derrick_k 2 · 0⤊ 0⤋
Start with the desired conclusion of 30 lbs.
There are 16 ounces in a pound so...
30 lbs. also equals 29 lbs and 16 oz.
29 lbs 16 oz
_ 21 lbs 7 oz
_______________
8 lbs 9 oz
this is your equation , to awnser the question what is needed to get to 30 lbs the awnser would be that you need to add 8 lbs and 9 oz.
2007-02-23 00:38:47 · answer #2 · answered by ? 6 · 0⤊ 0⤋
Whatever are you talking about? You're 8 pounds 9 oz away from 30 pounds.
2007-02-23 00:30:28 · answer #3 · answered by arbiter007 6 · 0⤊ 0⤋
There are 16oz in 1lb.
If this is a trick question than you may have 7 fluid ounces of an extremely dense material that weighs 9 pounds.
or
You would have to increase the acceleration due to gravity (F=MA)(move to Jupiter).
2007-02-23 00:33:21 · answer #4 · answered by John L 2 · 0⤊ 0⤋
Subtraction required.
Noting that 16 oz = 1 lbs:-
Could say 30 lb = 29lb 16oz
now subtract------- 21lb 7 oz
Answer ----------------8lb 9oz
2007-02-23 04:22:41 · answer #5 · answered by Como 7 · 0⤊ 0⤋
There are sixteen ounces in a pound.
2007-02-23 00:34:34 · answer #6 · answered by Anonymous · 0⤊ 0⤋
there are 14 ounces in a pound i think
2007-02-23 00:30:29 · answer #7 · answered by huhwhatcaca 2 · 0⤊ 1⤋