<h2>Steps</h2>
So for this system, one equation will represent the number of fruit and the other equation will represent the combined total of the fruit. (Let x = apples and y = bananas):
Next, I will be using the substitution method to remove one of the variables. To do this, firstly subtract both sides by y in the first equation:
Next, since we know that x is equal to 20 - y, substitute it into the second equation and solve for y:
Now that we have the value of y, substitute it into either equation to solve for x:
<h2>Answer</h2>
<u>In short, Angelo bough 14 apples and 6 bananas.</u>
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Answer:
A. Factoring; Completing the Square; Quadratic Formula; Graphing
B. All real numbers; 2 complex roots; 1 real root; 2 distinct real roots
C. 2 complex roots
Solution :
= 178 x 0.48
= 85.44
≈ 85
= 427 x 0.38
= 162.26
≈ 162
a). Yes, the sample sizes are large enough to use the large sample confidence interval so as to estimate the difference in the population proportions.
Let 
Where the 
the age 
group and the 2 - subscript indicates the age 
group.
Since 
are all at least 10, the sample sizes are large enough to use the large sample confidence interval.
= 0.409421
= 1 - 0.4094
= 0.5906
b). 90% confidence interval is
c). Zero is not included in the confidence interval. Answer is no. The difference in the two population proportion are different from each other.
