pam laid three times as many tiles on saturday as she laid on sunday. if pam laid 80 tiles over the weekend…

Explanation:

Step1: Set up variables

Let $x$ be the number of tiles laid on Sunday. Then the number of tiles laid on Saturday is $3x$.

Step2: Create an equation

The total number of tiles laid over the weekend is 80, so $x + 3x=80$. Combining like - terms gives $4x = 80$.

Step3: Solve for $x$

Dividing both sides of the equation $4x = 80$ by 4, we get $x=\frac{80}{4}=20$.

Step4: Find the number of tiles laid on Saturday

Since the number of tiles laid on Saturday is $3x$, substituting $x = 20$ gives $3\times20 = 60$.

Answer:

D. 60 tiles