"Moe earns 14 percent more than her husband Joe. Together they make 68000 per year. What is Joe’s annual salary?"
I wasn't sure if this is a statistic or proportional problem but I'm just unsure on how to go about solving it.
$\displaystyle 2.8 \cdot 10^4$ is only two significant figures.
Eg: 2.8 is two significant figures whereas 2.80 is three significant figures.
Edit: Are you sure about that answer? I get something else - Joe's salary which is the question is asking for is $\displaystyle x$
edit2: bye bye wrong info
It's $\displaystyle 1.14x + x = 2.14x = 68000$ instead of $\displaystyle 1.4x + x = 68000$
Not here, I misread as 4 sig fig instead of 2. Both $\displaystyle 2.8 \cdot 10^4 \text{ and } 28000$ are accurate to 2sf (ignore what I said in my previous post, that only occurs after the decimal point)And in two sig fig form I got 2.8 x 10^4
Did I do something wrong in the process?
That is two