22.4 = 56a / 5a + 10
the value of a please
2007-10-11 09:40:47 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
22.4 = 56a / 5a + 10
22.4 = 11.2 + 10
22.4 = 21.2
Not true. there is no value of a that will make this equation balance.
56a / 5a = 11.2 no matter what a is.
you can divide both the top and the bottom by a to reduce to 56/5 which = 11.2
2007-10-11 09:47:07 · answer #1 · answered by DanE 7 · 0⤊ 0⤋
22.4=56a + 50a/5a
22.4*5a = 56a+ 50 a
112a=106a
112a-106a=0
a(112-106)=0
a*6=0
a=0/6
a=0
In the above mentioned answer...we cannot divide 56a/5a directly....This is Bcoz,one another number is being added with 56a/5a.. so,u have to bring to a common denominator and proceed on with calculation....
2007-10-11 09:48:00 · answer #2 · answered by freeky 2 · 0⤊ 0⤋
22.4 = 56a / (5a + 10)
multiply by 10 on both sides of the equation
224 = 560a/(5a + 10)
224 (5a + 10) = 560a
1120a + 2240 = 560a
1120a - 560a = -2240
560a = -2240
a = -2240/560
a = -4
2007-10-11 09:48:33 · answer #3 · answered by Christine P 5 · 1⤊ 0⤋
i think the question should be like this
22.4=56a/(5a+10)
if that so
22.4(5a+10)=56a
112a+224=56a
112a-56a=-224
56a=-224
a=-224/56
a=-4
2007-10-11 09:52:44 · answer #4 · answered by karyocyte 1 · 0⤊ 0⤋
If anyone else here is fed up with "I can help you for that," please help me by reporting him. I have already done so, but I have been told that unless one more person reports him, nothing will be done.
2007-10-11 10:38:04 · answer #5 · answered by Tony 7 · 0⤊ 0⤋
no solution because the a's cancel out
2007-10-11 09:47:30 · answer #6 · answered by randy s 2 · 0⤊ 0⤋
You can't find a. All the a's cancel.
2007-10-11 09:44:58 · answer #7 · answered by Jabberwock 5 · 1⤊ 0⤋