Three friends bought 4, 6, and 8 books. The table shows the cost of the books. What is the constant of proportionality? 2 7.5 15
2 answers:
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Answer:
80
Step-by-step explanation:
The median is the middle value of the data arranged in ascending order. If there is no exact middle then the median is the average of the 2 values either side of the middle
Arrange the data in ascending order ( smallest to largest )
32, 77, 78, 82, 85, 87
There is no value exactly in the middle, use the average
median = =
= 80
GIVEN:
remember:
And
SOLVE:
start by multiplying the factors:
simplify by combing like terms. Most terms subtract off, leaving:
This can be factored, but it is not a perfect square, which is really what we need to take the square root.
I'm not exactly sure what form they want the answer in...
so taking the square root:
so my best answer is:
or the more factored form:
I'm not sure how else to solve it. Taking the square root doesn't work out super well, so I left it in the most simple form I could.
sorry for not coming to a definitive answer!
remember:
And
SOLVE:
start by multiplying the factors:
simplify by combing like terms. Most terms subtract off, leaving:
This can be factored, but it is not a perfect square, which is really what we need to take the square root.
I'm not exactly sure what form they want the answer in...
so taking the square root:
so my best answer is:
or the more factored form:
I'm not sure how else to solve it. Taking the square root doesn't work out super well, so I left it in the most simple form I could.
sorry for not coming to a definitive answer!