Glenda bought z containers of laundry detergent at $9 each.
She gave the cashier $50.
a. Find the change Glenda received in terms of z.
b. If z =� 3, how much change did Glenda receive?
a.
50 - 9z =
50 - (9 * 3) = 23
Very bad so trash
Don't understand
well 50-9times z or = 50-9*z
so that is thhe change: 50-9z
if z=3,
change=50-27=23 dollars
dont know don't understand
To find the change Glenda received, we first need to calculate the total cost of z containers of laundry detergent.
The total cost of z containers can be calculated by multiplying the price per container ($9) by the number of containers (z):
Total cost = $9 * z
a. To calculate the change Glenda received, we subtract the total cost from the amount of money she gave to the cashier.
Change = Amount given - Total cost
In this case, Glenda gave $50 to the cashier, so the change she received can be calculated as:
Change = $50 - Total cost
b. Now, let's consider the specific case where z = 3.
First, we calculate the total cost for 3 containers:
Total cost = $9 * 3 = $27
Then, we calculate the change Glenda received using the formula:
Change = $50 - $27 = $23
So, if z = 3, Glenda received $23 in change.