4 * 9 + 3 * 12 = 72 these go somewhere to make this problem correct ( )
2007-05-10 12:18:25 · 7 answers · asked by baby13 1 in Science & Mathematics ➔ Mathematics
The problem is correct as is: 4*9+3*12 = 36+36 = 72. So, uh, put the parentheses around the entire problem or something, because it's already right.
2007-05-10 12:22:51 · answer #1 · answered by Pascal 7 · 0⤊ 0⤋
They don't need to go anywhere
4*9+3*12=(4*9)+(3*12)=72
2007-05-10 19:22:35 · answer #2 · answered by Guilherme Costa 2 · 0⤊ 0⤋
(4*9)+(3*12) = 36+36= 72
2007-05-10 19:23:24 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I believe the answer would be (4 * 9) + (3 * 12) = 72.
The parenthesis tell what operation(s) should be done first.
2007-05-10 19:24:22 · answer #4 · answered by Jamie 7 · 0⤊ 0⤋
work the multiplication first.
So 4*9=36 and 3*12=36
Now add them
36+13=72
2007-05-10 19:22:31 · answer #5 · answered by Anonymous · 0⤊ 0⤋
If I understand your question correctly, () are used to separate calculations (to indicate what to multiply and what to divide). And in doing so you get the answer by: (4*9) + (3*12) = 72. (4x9 = 36) + (3x12=36). And 36 + 36 = 72. However in this equation, you don't need to use any parenthesis since multiplication come before addition. (In an equation, multiplication, division, addition, subtraction occurs in that order unless separated by (). *sigh*...I wish I had internet when I was doing my homework...
2007-05-10 19:27:40 · answer #6 · answered by Anonymous · 0⤊ 0⤋
(4*9)+(3*12)=72
You don't really need parentheses order of operations would dictate you do multiplication first.
2007-05-10 19:30:47 · answer #7 · answered by bcnd 3 · 0⤊ 0⤋