Equation : 2x - 3 = 45
Paula sold 24 packages last year
Step-by-step explanation:
<u>DATA:</u>
Number of packages Paula sold this year = 45 packages
This year's packages are 3 less than twice the number of packages sold last year.
- Twice the number of packages sold last year
Let's assume the number of packages sold last year to be x
2x
Equation:
2x - 3 = 45
<u>Solution:</u>
2x - 3 = 45
2x = 48
x = 24
Therefore, Paula sold 24 packages last year.
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Answer:
B. 585
Step-by-step explanation:
A graph of the scatter plot and line of best fit is attached.
The temperature in this problem will be the independent variable, or x. This is because we are assuming that the number of ice cream cones sold depends on the temperature; this means the number of ice cream cones will be the dependent variable, or y.
This means in our graphing calculator, we will enter temperature in the first list and the number of cones in the second.
After drawing the scatter plot, we run the linear regression; we get the values for a and b in our equation, y = ax+b:
a = 5.08
b = 46.59
This gives us the equation y = 5.08x + 46.59.
Entering our temperature, 106, in for x gives us
y = 5.08(106) + 46.59 = 585.07 ≈ 585
The correct answer are A. and B.
Good luck!!!
Answer:
$490
Step-by-step explanation:
$9800 * 1/20 = $490
9800 * 5% = $490