I think that its either A or D, im leaning more towards A tho
We have to use rounding or compatible numbers to estimate the difference of 823 and 242.
Since, a quick way to estimate the difference between two numbers is to round each number and then subtract the rounded numbers.
Therefore, rounding the number 823 to the nearest tens = 820
Rounding the number 242 to the nearest tens = 240
The difference between the estimated numbers
= 820 - 240
= 580
Therefore, the estimated difference is 580.
5 Is the square root of 125
Answer:
C = -4
Step-by-step explanation:
First, combine like terms (terms with the same amount of variables):
14 = -2C - 3C - 6
14 = (-2C - 3C) - 6
14 = (-5C) - 6
Isolate the variable, C. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operation, and equals:
Parenthesis
Exponents & Roots
Multiplication
Division
Addition
Subtraction.
First, add 6 to both sides:
14 (+6) = -5C - 6 (+6)
14 + 6 = -5C
-5C = 20
Next, divide -5 from both sides:
(-5C)/-5 = (20)/-5
C = 20/-5
C = -4
-4 is your value for C.
~
