Chris withdraws $7.50 per week from his savings account. After 15 weeks, the ba

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xnlyrrjlaar

Mathematics

Description

Chris withdraws $7.50 per week from his savings account.  After 15 weeks, the balance in the account is $585.

 

 

A.     Write an equation in point -slope form to model this.

 

 

 

 

B.    Write the equation in slope-intercept form.

 

                                               

 

 

C.     How much is in the account after 1 year (52 weeks)?

 

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Explanation & Answer

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Point slope form image

y-585=7.5(x-15)

y=mx+b 

585=7.5(15)=b

585=112.5+b

b=472.5

y=7.5*52+472.5=862.5


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