C + d = 2(c - d)
c = 9
9 + d = 2(9 - d)
9 + d = 18 - 2d
d + 2d = 18 - 9
3d = 9
d = 9/3
d = 3 <=== daira is 3 when carl is 9 years old and older then she
if carl is 9 years old and is younger then she ...I dont really understand this question....carl is 9 and daira is 3......possibly...their is a difference of 6 years in their ages....so if carl is 9 and younger then she, the daira is 6 years older ?? making her 9 + 6 = 15....not sure about this one ....the whole question throws me off
Answer:
X and Y = 4
Well, it's a right triangle. The red box means 90 degree angle. So I would say that all the sides are equal.
Answer:
x = 5
Step-by-step explanation:
Isolate the variable, x. 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
Isolate the variable, x. Subtract x and 2 from both sides:
-2x (-x) + 2 (-2) = x (-x) - 13 (-2)
-2x - x = -13 - 2
Simplify. Combine like terms:
-2x - x = -13 - 2
-3x = -15
Divide -3 from both sides:
(-3x)/-3 = (-15)/-3
x = -15/-3
x = 5
x = 5 is your answer.
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Let t = initial number of trees "remove 5 trees at the start of the season" means (t - 5) remain "each remaining tree made 210 oranges for a total of 41,790 oranges" means ( t - 5) * 210 = 41790 Now, you can solve for t: (t-5)(210) = 41790 [just re-writing] 210t - 1050 = 41790 [distribute] 210t = 42840 [add 1050 to each side] t = 204 [divide each side by 210] There were initially 204 trees. After 5 were removed, the remaining 199 produced 210 oranges each for a total of 199*210 = 41790 oranges.