Subsitute -4y for x
-4y+6y=18
2y=18
divide both sides by 2
y=9
sub back
x=-4y
x=-4(9)
x=-36
(x,y)
(9,-36)
The decimals that represent the portions of the words that Tomas spelled correctly is 0.9 or 0.90.
Answer:
its c d and e they're all greater than 5
1 + 1 + 1 + 2 = 5
5 x 9 = 45
Therefore, the total number of km is 45.