Answer:
Since there are two identical slopes, multiply 800 by 2 to get a total roof area of 1,600 square feet. Divide the total roof area by 32 to get the number of sheets you will need to cover the roof. A typical 4 foot by 8 foot sheet of plywood covers 32 square feet.
Step-by-step explanation:
Well...this is a proportion problwm. for every 16 cups I have 1 gallon, so I can write that as:
16 cups
-----------
1 gallon
this value will be proportional to 1/4 a gallon equal "so many" cups. let's equal the unknown about of cups to x.
16 cups______ x cups
-----------.... = ..... ----------
1 gallon _____ 1/4 gallons
I can cross multiply to find x.
1 gallon • x cups = 16 cups • 1/4 gallons
16 times 1/4 is the same as 16/4, which equals 4.
1 gallon • x cups = 4 cups gallons
divide both sides by gallons
x cups = 4 cups
so! 1/4 of a gallon equals 4 cups.
Answer:
y = 19/14 and x = 25/42
Step-by-step explanation:
Answer:
11/25
Step-by-step explanation:
# means number
probability = # of orange marbles / # of total possible outcomes
7(red) + 3(green) + 4(blue) + 11(orange) = total possible outcomes
total possible outcomes = 25
# of orange marbles = 11
11/25; the probabilty of randomling picking an orange marble is 11/25