3 years ago

This is so confusing help

1 answer:

5 0

6c + 3t = 4800
8c + t = 4600 .....multiply by -3
----------------
6c + 3t = 4800
-24c - 3t = - 13800
---------------add
-18c = - 9000
c = -9000/-18
c = 500...so each car is 500

8c + t = 4600
8(500) + t = 4600
4000 + t = 4600
t = 4600 - 4000
t = 600...and each truck is 600

selling 2 cars and 3 trucks...
2(500) + 3(600) = 1000 + 1800 = 2800 <==

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= <4, 3> * (1/5)

= <4/5, 3/5>

and there it is.

Writing it in component form:

= (4/5) * i + (3/5) * j

I hope this helps. =)

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