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smariedegray
28.01.2022 •
Mathematics
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Ответ:
Part a)
Part b) Eric spend 35 minutes playing volleyball every day
Part c) Is not possible. Eric spends more than 35 minutes playing basketball every day (Eric spend 60 minutes playing basketball every day)
Step-by-step explanation:
Part A: Write a pair of linear equations to show the relationship between the number of minutes Eric plays basketball (x) and the number of minutes he plays volleyball (y) every day
Let
x > the number of minutes Eric plays basketball
y > he number of minutes Eric plays volleyball
we know that
> equation A
---> equation B
Part B: How much time does Eric spend playing volleyball every day?
we have
> equation A
---> equation B
solve the system by substitution
substitute equation B in equation A
solve for y
therefore
Eric spend 35 minutes playing volleyball every day
Part C: Is it possible for Eric to have spent 35 minutes playing basketball every day?
Find the value of x
substitute the value of y in the equation B
so
Eric spend 60 minutes playing basketball every day
therefore
Eric spends more than 35 minutes playing basketball every day