Bella bought b boxes of cookies to bring to a party. She decides to keep two boxes. Each box contains 18 cookies. She brings 90 cookies to the party. Which equation can be used to find the number of boxes, b, Bella bought? How many boxes did she buy?
The equation that can be used to find the number of boxes, b, Bella bought is:
18b - 90 = 2
To solve for b, we can add 90 to both sides of the equation:
18b = 92
Finally, we divide both sides by 18:
b = 5
Bella bought 5 boxes of cookies.
To find the number of boxes, we need to set up an equation based on the information given. Let's follow the steps:
Step 1: Bella decided to keep two boxes, so the number of boxes she brings to the party would be b - 2 (since she bought b boxes initially).
Step 2: Each box contains 18 cookies. So, the total number of cookies she brings to the party would be (b - 2) * 18.
Step 3: According to the information given, she brings 90 cookies to the party. Therefore, we can set up the equation:
(b - 2) * 18 = 90
Now, let's solve this equation to find the number of boxes Bella bought:
Divide both sides of the equation by 18:
(b - 2) = 90 / 18
Simplify:
(b - 2) = 5
Add 2 to both sides of the equation to isolate b:
b = 5 + 2
Simplify further:
b = 7
Therefore, Bella bought 7 boxes of cookies.
To find the number of boxes, b, Bella bought, we can use the following equation:
Number of boxes Bella bought - Number of boxes Bella kept = Number of boxes she brought to the party.
Let's represent the number of boxes Bella bought as b. We know she kept 2 boxes and each box contains 18 cookies. The number of cookies she brought to the party is 90.
So, the equation becomes:
b - 2 = 90 / 18
To simplify further:
b - 2 = 5
Adding 2 on both sides of the equation:
b = 5 + 2
b = 7
Therefore, Bella bought a total of 7 boxes of cookies.
What equation should I use?
Apologies for the confusion. To find the number of boxes, b, Bella bought, we can use the equation:
18b - 36 = 90
This equation represents the total number of cookies Bella bought, subtracting the 36 cookies she kept, equals the 90 cookies she brought to the party.
Let's solve this equation:
Adding 36 to both sides of the equation:
18b = 126
Dividing both sides by 18:
b = 7
Therefore, Bella bought a total of 7 boxes of cookies.
Delia spent $250 to rent a boat for 6 hours. The rental company charges a base rate of $150 for the first two 2 hours, and then an hourly rate for each additional hour. How much does each additional hour of boat rental cost?
To find out how much each additional hour of boat rental costs, we need to calculate the total cost for the first 2 hours and then subtract it from the total cost for the entire 6 hours. Let's follow the steps:
Step 1: The rental company charges a base rate of $150 for the first 2 hours. So the cost for the first 2 hours is $150.
Step 2: To find out the cost for each additional hour, we need to subtract the cost for the first 2 hours from the total cost for the entire 6 hours. The total cost for 6 hours is $250.
To find the cost for each additional hour, we subtract the cost for the first 2 hours from the total cost for 6 hours:
$250 - $150 = $100.
Therefore, each additional hour of boat rental costs $100.
wrong
I apologize for the incorrect response. Let's calculate the correct amount together.
The rental company charges a base rate of $150 for the first 2 hours. To find out the cost for each additional hour, we need to subtract this base rate from the total cost for 6 hours.
The total cost for 6 hours is $250.
Subtracting the base rate of $150 from the total cost for 6 hours:
$250 - $150 = $100.
Now, we need to divide this difference by the number of additional hours, which is 4 (6 hours - 2 hours = 4 additional hours).
Dividing $100 by 4:
$100 / 4 = $25.
Therefore, each additional hour of boat rental costs $25.