The equation you can use is x + 3x = 428 with x as the number of cheeseburgers and 3x the number of hamburgers
you solve for x and get 4x= 428 and x=107
so 321 hamburgers were sold that day.
Step-by-step explanation:
x = number
3x - 15 = (x - 12)×-4 or (12-x)×-4
3x - 15 = -4x + 48 or -48 + 4x
7x = 63, x = 9 or
33 = x
Grace’s because she followed the order of operations. Addition and subtraction first, then multiply and divide.
Use the method rise over run (rise/run) that would get you 30/20 and that would equal to 1.5
Answer:
300ft^3
Step-by-step explanation:
I'm guessing what the question meant be triangular is a triangular prism.
The volume formula for a triangular prism is 1/2(lwh)
L=10
W=10
H=6
(6)(10)(10)=600
600/2=300
V=300ft^3
Hope this helps! :)