ammy reads the same number of pages from his book each night. The expression 228 – 12x shows how many pages he has left to read on any given night.

What does the number 12 in the second term represent?

Question

ammy reads the same number of pages from his book each night. The expression 228 – 12x shows how many pages he has left to read on any given night.

What does the number 12 in the second term represent?

asnaseer · Answer

Think of it this way - lets say you had a book with 300 pages in it and you managed to read 10 pages a night. How many pages would be left to read after one night?

anonymous · Answer

290

asnaseer · Answer

correct - and how many left after two nights?

anonymous · Answer

280

asnaseer · Answer

correct - now look at how you got these numbers...

anonymous · Answer

subtracted

asnaseer · Answer

after one night: 300 - 1x10 = 300 - 10 = 290
after two nights: 300 - 2 x 10 = 300 - 20 = 280

asnaseer · Answer

what do you think will be the formula to work out how many pages are left to read after "x" nights?

anonymous · Answer

oh ok thank you

asnaseer · Answer

yw - I'm glad I was able to help :)