Answer:
The answer is A "If I dont swim one mile before work, then I will run three miles after work"
Step-by-step explanation:
Since the double negation of any statement is equivalent to the original in classical logic, the inverse of the inverse is logically equivalent to the original conditional . Thus it is permissible to say that and are inverses of each other. Likewise, and are inverses of each other. So the opposite of what they are saying. Like If it rains the grass will get wet. Inverse- If it does not rain the grass will not get wet.
Define your variables:
Q: number of quarters
D: number of dimes
Next, create your equations
Q = 2D-4
25Q+10D=200
Because one variable (Q) is already written in terms of the other variable, D, you can already start solving with substitution.
25(2D-4)+10D=200
50D-100+10D=200
60D=300
D=5
Substitute D back into the other equation to find Q.
Q=2D-4
Q=2(5)-4
Q=6
Substitute D and Q into the second equation to check.
25Q+10D=200
25(6)+10(5)=200
150+50=200
This works, so the answer is right! Bill has 6 quarters and 5 dimes.
Answer: 6
Step-by-step explanation:
Two negatives make a positive, -42/-7 would be 6. The same as a normal 42/7
What is the rule? It will be easier to put this equation into a graphing calculator because it shows the table for this equation.
Answer:
x=6y+1
x=y+1
Step-by-step explanation:
