How-to books make up .3 of the books in the school library. Of these, .2 deal with carpentry and .4 deals with electronics.
.3x.4=.12
Interpret what the answer .12 represents in the equation above
The answer .12 represents the proportion of the books in the school library that deal with both carpentry and electronics.
The answer .12 represents the fraction of books in the school library that deal with both how-to carpentry and how-to electronics.
The answer .12 represents the proportion of books in the school library that deal with both how-to carpentry and electronics.
In the given information, it is stated that how-to books make up 0.3 (30%) of all the books in the library. Out of these how-to books, it is mentioned that 0.2 (20%) deal with carpentry and 0.4 (40%) deal with electronics.
To find the proportion of books that deal with both carpentry and electronics, we multiply 0.3 (the overall proportion of how-to books) by 0.4 (the proportion of how-to books that deal with electronics). The result is 0.12 (12%) which tells us that 12% of the total books in the library are how-to books that deal with both carpentry and electronics.