Ask your own question, for FREE!
Mathematics 8 Online
OpenStudy (anonymous):

A carpenter has already shingled 6 roofs and is shingling roofs at a constant rate or 9 per week. Write an equation that models the number of garage roofs r, after t weeks. The equations that models the give situation is what?

jimthompson5910 (jim_thompson5910):

Week 0 (starting week): 6+9*0 Week 1: 6+9*1 Week 2: 6+9*2 Week 3: 6+9*3 Week 4: 6+9*4 See the pattern?

OpenStudy (anonymous):

yes kindof

jimthompson5910 (jim_thompson5910):

So the equation is what

jimthompson5910 (jim_thompson5910):

For any week, say week x, the number of roofs shingled is y = ...

OpenStudy (anonymous):

ok

jimthompson5910 (jim_thompson5910):

What goes after the = sign

OpenStudy (anonymous):

I am not sure

jimthompson5910 (jim_thompson5910):

Week 0: 6+9*0 Week 1: 6+9*1 Week 2: 6+9*2 Week 3: 6+9*3 Week 4: 6+9*4 Week 5: 6+9*5 Week 6: 6+9*6 ... ... Week x: 6+9*x (general amount)

jimthompson5910 (jim_thompson5910):

oh it's using t instead, so 6+9t or 9t+6

OpenStudy (anonymous):

so what is the r and t for?

jimthompson5910 (jim_thompson5910):

sry i used the wrong variable, it should be r = 9t+6 r = number of roofs shingled t = number of weeks

jimthompson5910 (jim_thompson5910):

but the idea is still the same

OpenStudy (anonymous):

ok I understand it now thank you so much

jimthompson5910 (jim_thompson5910):

np

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!