You gotta post the choices, but I'm guessing it's
Answer:
C2H2 + 3O2 ---> 2CO2 + 2H2O
Step-by-step explanation:
5x + 300y = 178
4x + 500y = 197
Multiply the first equation by 5 and the second equation by -3.
25x + 1500y = 890
-12x - 1500y = -591 Subtract.
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13x = 299 Divide.
x = 23.
Solve for y by plugging in 23 for x.
4(23) + 500y = 197
92 + 500y = 197
500y = 105
y = .21
The Daily Fee is $23 and the Charge Fee per mile is $0.21.
Answer:
S=4.5
Step-by-step explanation:
dxxzzzzzzzzzzzzzz---