It would be the first one
Step-by-step explanation:
Answer:
Step-by-step explanation:
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Description Equation
Derivative of a Constant Derivative of a Constant
Derivative of a Variable to the First Power Derivative of a Variable to the First Power
Derivative of a Variable to the nth Power Derivative of a Variable to the nth Power
Derivative of an Exponential Derivative of an Exponential
Derivative of an Arbitrary Base Exponential Derivative of an Arbitrary Base Exponential
Derivative of a Natural Logarithm Derivative of a Natural Logarithm
Derivative of Sine Derivative of Sine
Derivative of Cosine Derivative of Cosine
Derivative of Tangent Derivative of Tangent
Derivative of Cotangent Derivative of Cotangent
Just turn the percentage to a decimal. 145% becomes 1.45. Then add 1.00 to 1.45. 1 + 1.45 = 2.45
Then multiply. 2.45 * 340 = 833
Answer:
X = 14 kg
Y= 7 kg
Step-by-step explanation:
LET X and Y equal the amounts of brand X and Y
X = kg of brand X
Y = kg of brand Y
we know:
1) X + Y = 21 (kg)
2) 1X + 4Y = 2(X + Y) (This is the cost/kg * amounts for total cost)
Coefficients 1,4,2 are the cost/kg)
substitute eq. 1 (X+Y), = 21 into right side of equation 2
1X + 4Y = (21)*2
use elimination to solve 2 equations
X + Y = 21
X + 4Y = 42 (now subtract, note: I wrote the 1X as just X)
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0 -3Y = -21 OR Y = 7 kg so X = (21-7) OR X = 14 kg
