<span>We want to check how many intersections line A and B have, that is, we want to check how many common solutions do these equations have:
</span>
i) 2x + 2y = 8
ii) x + y = 4
<span>
use equation ii) to write y in terms of x as : y=4-x,
substitute y =4-x in equation i):
</span>2x + 2y = 8
2x + 2(4-x) = 8
<span>2x+8-2x=8
8=8
this is always true, which means the equations have infinitely many common solutions.
Answer: </span><span>There are infinitely many solutions.</span><span>
</span>
Carmen has given 6 coins to her brother<span />
Answer:
1/10
Step-by-step explanation:
1/2 divided by 5 = 1/10
<u>a = b + c/d</u>
Subtract 'b' from each side: a - b = c/d
Multiply each side by 'd' : <em>d (a - b) = c
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