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Answer:
12n+9=93
solve for n
12n=93-9
n=84/12
n=7
therefore, Mr. copper bought 7 tickets.
Answer:
1:25 (dm:km)
Step-by-step explanation:
For the ratio, you compare two units.
Naturally, we could say that 2 dm corresponds to 50 km
Written in fraction form:
2dm/50km
Simply the fraction normally:
1dm/25km
Just replace the "/" with ":"
1:25 (dm:km)
Answer:
equals 56
Step-by-step explanation:
(4x2 - 2x) - (-5x2 - 8x)
= 4x2 - 2x + 5x2 + 8x.
= 4x2 + 5x2 - 2x + 8x.
= 9x2 + 6x.
= 3x(3x + 2).
Answer: 3x(3x + 2)
