Answer:
360 screws
Step-by-step explanation:
First we need to determine how many screws she needs for the 2 decks
We will determine the number of screws for 1 deck
1 deck uses 25 pieces of wood
25 pieces of wood * 8 screws/ piece of wood = 200
200 screws per deck
She is building 2 decks
2 * 200 = 400
400 screws for the 2 decks
She has 40 screws
400 screws she needs - 40 screws she has = 360 screws she still needs
A)Declarative because your telling them your favorite subject :)
It's too hard for me to show all the work, but you can find a common denominator in 8.
Change 3/4 to 6/8 and -3/2 to -12/8.
Now that all the fractions have the same denominator, you can multiply the whole problem by 8 and cancel out all denominators.
You are left with 6=3x-12
Add 12 to 6 and cancel out on the right side.
18=3x
Divide by 18 by 3
x=6
Answer:
I'm well I can't include a model but I think I could explain it pretty well you see when you add the six tiger shark teeth and the eight sand tiger shark teeth together and compare that to the 18 that is 14 so they said the rest is well the rest is bull shark teeth so that is for so the ratio is 4 to 18 which means the 4 stands for the bull shark teeth to the whole amount of shark teeth
He will give about 99 prizes to each student
