tiana says that you need to use an increase operation to solve y=8+21 tess disagrees
who is correct and why?
2007-09-18 17:18:07 · 4 answers · asked by la la 1 in Science & Mathematics ➔ Mathematics
y= 821
take 8 and 21 as symbols
then you got
y=821
2007-09-18 18:10:28 · answer #1 · answered by sanjeewa 4 · 0⤊ 0⤋
There is no decrease sign necessary. If you are dealing with an equal sign, you cannot replace it with the increase or decrease sign.
When you need to use the increase or decrease signs, you will know because they will be provided for you in the equation.
Having said this, y = 8 + 21
Add 8 and 21 and this equals 29
So y = 29
2007-09-18 17:31:03 · answer #2 · answered by peaceablefruit206 7 · 0⤊ 0⤋
Tess is correct, because
y=8+21 is
y=29 which is
29=8+21
so see no increase or decrease sign necessary
2007-09-18 17:27:32 · answer #3 · answered by Zero Cool 3 · 0⤊ 0⤋
y = 8 + 21
8 + 21 = 29
y = 29
2007-09-18 17:24:02 · answer #4 · answered by lhvinny 7 · 0⤊ 0⤋