Any of them. To get 50 to 30 you could...
subtract 20
add -20
divide by 5/3
multiply by 3/5
-add 3n to both sides -subtract 2 from both sides -cancel out the both -divide 28 by 7.
12
To convert from degrees Celsius in degrees Fahrenheit, multiply the number by 9, divide by 5, and add 32. In this instance, 30 x 9 = 270 / 5 = 54 + 32 = 86.Therefore 30 degrees Celsius is equal to 86 degrees Fahrenheit.
56 ÷ 30 = 1 with remainder 26.Then, add a decimal after 1 and continue dividingAfter bringing down your zero it becomes 260Then you multiply 8x30 to make 240 which you subtract from 260After that you get 200, and then you use 6 again to make 180 to subtract it from 6.For you answer you get 1.86
40
30 / 2 + 10 - 2 = 23
Start with n, then you get; Add 17: n + 17 Double it: 2n + 34 Subtract 4: 2n + 30 Double it: 4n + 60 Add 20: 4n + 80 Divide by 4: n + 20 Subtract 20: n which is where you started.
subtract Example: $5 off $30 is $25
28
Five times
-add 3n to both sides -subtract 2 from both sides -cancel out the both -divide 28 by 7.
-3. 30/10x=0 <-Set up equation like this, then subtract 30 from both sides (10x=-30). Then divide both sides by 10 (x=-3).
To solve this expression, we follow the order of operations, which is Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). First, we calculate 100 times 3, which equals 300. Then we divide that result by 10, giving us 30. Next, we add 25 to 30, resulting in 55. Finally, we subtract 5 from 55, giving us a final answer of 50.
Only once because after that, it is no longer 30.
12.5
12.5
25