Answer:
205/6
Step-by-step explanation:
The question simply asks us to plug in 45 minutes into the given equation. In the graph, we see that y-axis is defined to be time. Therefore we set y=45 and solve for x.
45=-6/5x+86
-41=-6/5x (subtract 86 from both sides)
-41*(-5)=-6/5x*(-5) (multiply both sides by -5)
205=6x (divide both sides by 6)
205/6=x
Answer:
10 blocks
Step-by-step explanation:
South and West are perpendicular to each other, meaning they form a right angle. With the diagonal intersecting with each of the corners, we can form a right triangle. We can use Pythagorean Theorem (a^2 + b^2 = c^2) to find that 8^2 + 6^2 = (diagonal)^2. 8^2 + 6^2 = 100. The square route of 100 is 10, meaning Dana would have to walk 10 blocks.
Your plate numbers will be like
where each 
is a number, and each 
is a letter. Assuming you can use all numbers and letters, you have 10 possible choices for every place (all the digits from 0 to 10) and 26 possible choices for every place (all the letters from a to z).
So, if you multiply all the possible choices, you have
So, there is a total of
possible plate numbers with 3 letters and 3 numbers, if repetitions are allowed.
