Answer:
Sum of the number is 8.4
Step-by-step explanation:
x = sum of a number
(5 × x) + 6 =48
5x + 6 = 48
5x + (6 - 6) = (48 - 6)
5x = 42
5x ÷ 5 = 42 ÷ 5
x = 8.4
Answer:
Step-by-step explanation:
9x^2 + 24x + 16 = 0
(3x + 4)(3x+4)=0
3x + 4 = 0
3x = -4
x = -4/3
3x + 4 = 0
3x = -4
x = -4/3
Answer:
cos A = 12/13 = 0.9231
(angle A = 22.62°)
Step-by-step explanation:
cos A = 12/13 = 0.9231
Answer:
m + 15
Step-by-step explanation:
Start at the end and work backwards to the beginning of the sentence. Most times these work like that. I'll start with "m", then I know that 15 more than "m" is m + 15. It would be the same thing to express that particular problem as 15 + m because addition is commutative. But subtraction is not.
"15 less than m" is m - 15, wheras
"m less than 15" is 15 - m.
This matters because if m = 10, for example, 10 - 15 = -5 where 15 - 10 = 5
5 and -5 are not the same answer.
Answer: 18
Step-by-step explanation: well 9 x 12 = 108 then divide it by 6 and yyou get 18 wich is 6 x 3
