Susan read 17 pages today. That is 8 pages fewer than 1 over 3 of the pages she read yesterday. How many pages did she read yesterday?
Let X be the number of pages Susan read yesterday.
Today Susan read X/3 - 8 = 17.
Therefore X/3 = 25.
Thus, Susan read X = 75 pages yesterday. Answer: \boxed{75}.
To find out how many pages Susan read yesterday, we need to set up an equation based on the information given.
Let's assume that the number of pages Susan read yesterday is "x."
According to the information given, Susan read 17 pages today, which is 8 pages fewer than 1 over 3 of the pages she read yesterday. In mathematical terms, this can be expressed as:
17 = (1/3)x - 8
To find out how many pages Susan read yesterday, we need to solve this equation for "x."
First, let's add 8 to both sides of the equation:
17 + 8 = (1/3)x
Simplifying this equation further:
25 = (1/3)x
Next, to isolate "x," we need to multiply both sides of the equation by 3:
3 * 25 = 3 * (1/3)x
75 = x
Therefore, Susan read 75 pages yesterday.
Let's solve the problem step by step.
Step 1: Let's call the number of pages Susan read yesterday "x".
Step 2: According to the problem, Susan read 17 pages today, which is 8 pages fewer than 1/3 of the pages she read yesterday. So, we can write an equation to represent this information:
17 = (1/3)x - 8
Step 3: Now, let's solve the equation for "x", which represents the number of pages Susan read yesterday.
Adding 8 to both sides of the equation, we get:
17 + 8 = (1/3)x
25 = (1/3)x
Step 4: To isolate "x", we can multiply both sides of the equation by 3:
3 * 25 = 3 * (1/3)x
75 = x
Therefore, Susan read 75 pages yesterday.