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Answer:
A)Unit prize is $0.162
B)Unit prize is $0.183
Step-by-step explanation:
A) 13.5-ounce bottle cost 2.19
Cost of 13.5 ounce bottle =2.19
Cost of 1 ounce bottle =
So, Unit prize is $0.162
B)29.2-ounce bottle costs 5.37
Cost of 29.2 ounce bottle = 5.37
Cost of 1 ounce bottle =
So, Unit prize is $0.183
In 7th grade:
red-hair students =58
another color hair students =609
In 8th grade:
red-hair students =60
Let's assume
another color hair students =x
now, we are given
The numbers of red-haired students in 8th grade are proportional to the numbers in 7th
so,
now, we can solve for x
we get
we get
so, students have another color hair in 8th grade is 630.........Answer