In speech class, Carolyn needs at least a B + to keep her financial aid. To earn a B+, the average of her four speeches must be
at least an 85. On the first 3 she scored 85, 77, and 81. Determine the minimum score speech to get a B+.
2 answers:
Answer:
97
Step-by-step explanation:
Relative to the average she wants, Carolyn's scores are ...
85-85 = 0
77-85 = -8
81-85 = -4
Carolyn's score total is -8-4 = -12 points from the average she wants, so she must get 85+12 = 97 on her speech to achieve a B+ average.
_____
<em>Check</em>
With a 97, Carolyn's average would be ...
(85 +77 +81 +97)/4 = 340/4 = 85
Answer:
<h3>
The minimum score speech to get a B+ is 89.</h3>
Step-by-step explanation:
Average of the first 3 = 85 + 77 + 81 / 3
= 243 / 3
= 81
The fourth score ( to get 85 ) = 81 + 89
= 170 / 2
= 85
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Answer:
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