Question

A textbook store sold a combined total of 367 chemistry and math textbooks in a week. The number of math textbooks sold was 67 less than the number of chemistry textbooks sold. How many textbooks of each type were sold.

Answer 1

217 chemistry textbooks and 150 math textbooks were sold.

Explanation:

Let's use variables to represent the number of textbooks sold:

Let c be the number of chemistry textbooks sold

Let m be the number of math textbooks sold

We know that the total number of textbooks sold is 367:

c + m = 367

We also know that the number of math textbooks sold is 67 less than the number of chemistry textbooks sold:

m = c - 67

Now we can substitute the second equation into the first equation and solve for c:

c + (c - 67) = 367

2c - 67 = 367

2c = 434

c = 217

So there were 217 chemistry textbooks sold. We can use the second equation to find the number of math textbooks sold:

m = c - 67 = 217 - 67 = 150

Therefore, 217 chemistry textbooks and 150 math textbooks were sold.