KeyLimePi

A. $30-\frac{30}{6}$. $\frac{30}{6}=5$. $30-5=25$. You have been posting a lot of problems. Why don't you post your attempts at solving next time. I am asuming this is for homework?

-KeyLimePi$\pi\pi\pi$

B. False. -3>-2 suggests that -3 is greater than -2 which is incorrect. A true statement would be -3 is a solution of y<-2.

-KeyLimePi$\pi\pi\pi$

It is 120. :D

Annnnnd CPhill beat me to it

Let $d$ be the distance to location b in km. Since you drove $100$ km/h, then the time that it took you to get there is $\frac{d}{100}$. If you drove $120$ km/h then the time would be $\frac{d}{120}$. Since you drove arrived $55$ minutes later, and $\frac{55}{60}$, or $\frac{11}{12}$. Therefore we can create the equation, $\frac{d}{120}=\frac{d}{100}-\frac{11}{12}$. Multiplying both sides by $600$. The LCM. We get $5d=6d-550$. Subtract $6d$ from both sides. $-d=-550$. Divide by $-1$. $d=550$. The distance between location $a$ and location $b$ is $550$ km.

-$\pi$ KeyLimePi

(a) Sea level is $0$, therefore the elevation of city (A) is $-96$, and the elevation of city (C) is $-24$. For this part we do not need the elevation of city (A). The elevation of city (D) is $\frac{1}{4}$ of city (C). The key word is OF! Of means to multiply. Therefore we have the expression$-24\cdot\frac{1}{4}$.

(b) Part b is fairly simple. All you have to do is compute $-24\cdot\frac{1}{4}=-6$. As for explaining why it's negative we go back to how a negative times a positive is a negative. 

This wasn't a very challenging problem. Are you sure you couldn't have solved it?

-$\pi$   KeyLimePi

This was answered here 

Thanks Guest

Gotcha thx

But how did you get 9 and 11?? Never mind I just realized thanks