Answer:
Step-by-step explanation:
look up z-table
3 std div. = 0.00135
Answer:
C
Step-by-step explanation:
2s+4=5(-4-2s)
Distribute the 5
2s+4=-20-10s
add ten s to both sides
12s+4=-20
subtract 4 from both sides
12s=-24
divide by 12 on both sides
s=-2
Hope this helps :D
4;81
You subtract 5 from 9 to get 4; 5(9)= 45 9(4)=36 45+39=81
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.
