xy=45
x+y=14 or x=14-y
(14-y)y=45
y^2-14y+45=0
y=9 or 5
almaz has teken two tests.her average score is 7(out of ten). the product of her scores is 45. what did she score in each test?
4 answers
Factors of 45:
1 * 45
3 * 15
5 * 9
Which of those pairs of factors would produce an average of 7?
1 * 45
3 * 15
5 * 9
Which of those pairs of factors would produce an average of 7?
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2 answers