Lee drove a car 2,904.6 kilometers on a recent vacation. The odometer reading on his car was 99,532.4 kilometers when he returne
1 answer:
<span>To find the odometer reading before the trip, we just need to subtract the distance that Lee drove in recent vacation form the current odometer reading in his car.
We know for our problem that Lee drove </span>2,904.6 kilometers and the current odometer reading on his car is <span>99,532.4 kilometers, so lets perform our operation:
</span>Odometer reading before the trip=
We can conclude that <span>the odometer reading before the trip was 96,627.4 kilometers.</span>
We know for our problem that Lee drove </span>2,904.6 kilometers and the current odometer reading on his car is <span>99,532.4 kilometers, so lets perform our operation:
</span>Odometer reading before the trip=
We can conclude that <span>the odometer reading before the trip was 96,627.4 kilometers.</span>
You might be interested in
We need to start from the innermost parenthesis and work our way out.
The first parenthesis is . These are not like terms because one involves a variable, while the other is a constant term. Two terms are summable if they involve the same power(s) of the same variable(s).
So, we can take one step outwards, and we arrive to the square brackets. We have
and 2z and -13z are like terms, so we can sum them:
Finally we arrive to the whole expression, which is
Because, again, 5z and 11z were like terms.