Can someone tell me if I did this right? I got 36 - 15 = 21
2007-01-10 22:44:57 · 11 answers · asked by sparky691970 1 in Science & Mathematics ➔ Mathematics
Just substitute. 3(3)(4) - 5(3)
That means 3x3x4 - 5x3
Make sure you do the multiplying before the subtracting, because you must follow the Orders of Opperation!
That comes to 36 - 15
Meaning the answer is 21!
:)
2007-01-10 22:53:48 · answer #1 · answered by Anonymous · 0⤊ 0⤋
3xy - 5x =
3*3*4 - 5*3 =
36 - 15 =
21
Yeap!! But you should be more self-confident!
2007-01-11 07:57:54 · answer #2 · answered by Nicole 3 · 0⤊ 0⤋
it should be 21
That's correct. Because first you have to substitute for X and Y, which gives you 3(3)(4) - 5(3). Then you have to multiply, and then subtract, as so.
3 times 3 is 9 times 4 is 36. 5 times 3 is 15. 36-15=21.
2007-01-11 06:51:50 · answer #3 · answered by Hunter B 1 · 0⤊ 0⤋
3*3*4-5*3=36-15=21.u r right
2007-01-11 08:13:26 · answer #4 · answered by torta 1 · 0⤊ 0⤋
yes
3(3)(4)-5(3)=(9)(4)-15=36-15=21
2007-01-11 07:02:33 · answer #5 · answered by Tan L 2 · 0⤊ 0⤋
Yup that is the rite answer
2007-01-11 06:53:23 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Yup..absolutely right buddy..Keep it Up!!!
2007-01-11 06:49:50 · answer #7 · answered by tukel 2 · 0⤊ 0⤋
yes
2007-01-11 06:48:15 · answer #8 · answered by Luis U 2 · 0⤊ 0⤋
absolutely correct
2007-01-11 07:38:02 · answer #9 · answered by Deranged Soul.. 2 · 0⤊ 0⤋
you got it right good job.
2007-01-11 07:19:57 · answer #10 · answered by TJ 2 · 0⤊ 0⤋