ANSWER
The correct answers is B and D.
EXPLANATION
According to the rational root theorem, all factors of 18 divided by all factors of 9 are possible rational roots.
Therefore option B and D are the correct answers.
Answer:
(1, 2) is not a solution
Step-by-step explanation:
To determine if the point is a solution substitute the coordinates into the left side of both equations and if equal to the right side then the point is a solution.
- (3 × 1) - 2 = - 3 - 2 = - 5 ≠ 18
(5 × 1) + (6 × 2) = 5 + 12 = 17 ≠ - 12
Hence (1, 2) is not a solution of the system of equations
Answer:
12/1
Step-by-step explanation:
hope this helped if not sorry
Answer:
Emily has 12 dimes and 8 nickels.
Step-by-step explanation:
Emily has a total of 20 coins.
Let d be the number of dimes she has and n the number of nickels:
Dimes are worth 10 cents and nickels are worth 5 cents, therefore the amount she has and what she would have if the dimes were nickels and nickels were dimes are, respectively:
Since she would have 20 cents less in the second option, the following equation can be written:
Substituting (d = 20 - n) into this equation yields:
Emily has 12 dimes and 8 nickels.
Answer:
Step-by-step explanation:
times the number so 18 times 30