Final answer:
To find the total number of nails and bolts Jacob has now, we need to start by finding the initial number of nails and bolts he had. Let's say Jacob initially had m nails and twice as many bolts as nails. Jacob then buys 20 nails and 30 bolts, so the total number of nails he now has is m + 20 and the total number of bolts is 2m + 30.
Step-by-step explanation:
To find the total number of nails and bolts Jacob has now, we need to start by finding the initial number of nails and bolts he had. Let's say Jacob initially had m nails. Since he has twice as many bolts as nails, he must have had 2m bolts. Jacob then buys 20 nails and 30 bolts, so the total number of nails he now has is m + 20 and the total number of bolts is 2m + 30.