2006-06-27 14:51:40 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
the number is 7
2006-06-27 14:54:38 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Okay, lets start with the question: Five times the sum of a number and two is 45. So now we need to write it as a numerical equation like this: 5 X (a number + 2) = 45
5 X (7+2) = 45
5 X 9 = 45
the number = 7
Firehawk of Pendleton, Indiana
... that is the easy way...
The MORE algebraic way of finding it is this way:
5 * (x+2) = 45 then divide both sides by 5 and you get
(x+2) = 45/5
x+2 = 9
now subract 2 from both sides and you get
x+2-2 = 9-2
OR X = 7
the number is 7!
2006-06-27 22:17:20 · answer #2 · answered by Firehawk 2 · 0⤊ 0⤋
Five times the number of 7 and two is 45 :)
2006-06-27 21:55:45 · answer #3 · answered by Britt Britt 2 · 0⤊ 0⤋
45/5 = 9
9-2=7
2006-06-27 21:54:50 · answer #4 · answered by Kelsey 2 · 0⤊ 0⤋
5(x + 2) = 45
x + 2 = 9
x = 7
ANS : 7
2006-06-28 00:02:48 · answer #5 · answered by Sherman81 6 · 0⤊ 0⤋