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?(1 point) Responses 18b−2=90; b=5 18b−2=90; b=5 2b−18=90; b=54 2b−18=90; b=54 18b−36=90; b=7 18b−36=90; b=7 18b−36=90; b=6
The correct equation that can be used to find the number of boxes, b, that Bella bought is 18b - 2 = 90. By solving this equation, we find that b = 5. Therefore, Bella bought 5 boxes of cookies.
The equation that can be used to find the number of boxes, b, Bella bought is: 18b - 2 = 90. To solve for b, we need to isolate it on one side of the equation.
To do this, we first add 2 to both sides of the equation to cancel out the -2:
18b - 2 + 2 = 90 + 2
This simplifies to:
18b = 92
Next, we divide both sides of the equation by 18 to solve for b:
18b / 18 = 92 / 18
This simplifies to:
b = 5.111 (approximately)
Since Bella cannot buy a fraction of a box, we round down to the nearest whole number. Therefore, Bella bought 5 boxes of cookies.
The correct equation to find the number of boxes, b, Bella bought is:
18b - 2 = 90
To solve this equation, let's isolate the variable b by isolating the terms:
18b = 90 + 2
18b = 92
Now, divide both sides of the equation by 18:
b = 92 / 18
Simplifying the division, we get:
b = 5.11
Since the number of boxes cannot be fractional, we can round it down to the nearest whole number. Therefore, Bella bought 5 boxes of cookies.