Answer:
If she is driving 60 mph she will save 1 hour of her time rather then going 55 mph.
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given 
Let 
Interchange x and y

Solve for y, by first squaring both sides


Hence

The last choice is correct
Solution
=14
Step-by-step explanation:
<h2>
3x-12=2x+2</h2><h2>
3x-12=2x+23x-2x-12=2</h2><h2>
3x-12=2x+23x-2x-12=2x=12+2</h2><h2>
3x-12=2x+23x-2x-12=2x=12+2x=14</h2>
Consider this option (this is not the only way):
1. according to the condition 2345N is divisible by <em>6</em>, it means, that N is even number (0;2;4;6 or 8).
2. <em>6</em>=3*2, then the number 2345N is divisible by 3 also. It means, that the number (2+3+4+5+N)=(14+N) is divisible by 3, where N={0|2|4|6|8}.
3. using items 1 and 2:
(14+4)=18; only 18 is divided by 3, it means that N=4.
answer: 4.
Note also, that only 23451; 23454 and 23457 are divided by 3. Only 2345<u>4</u> is divided by 6 (2345<u>4</u>/6=3909).