<span>expressions for the mean and standard deviation of y if this variable is determined by the expression y </span>
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What is 2 (3t + 4) - 2t equivalent to?
2 answers:
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Answer:
$60
Step-by-step explanation:
We can create a proportion to find the markup from original price to the marked up price. A proportion is an equation where two ratios are set equal to each other. We create two fractions using the prices and percents. It is marked up by 20% so we pay 120% of $50.
We begin solving by cross multiplying numerator to denominator of each fraction.
Recall that the quadratic formula states that, the solutions to the quadratic equation
are
Now, in the given equation, a=-1 ,b=-6, and c= 8. Therefore, the solutions to the equation are:
Simplifying the above result, we get:
Answer: