ANSWER:
22
(All you’re doing is plugging in the values into the formula)
1 dozen = 12
144 / 12 = 12 dozen
12 dozen/ 3 = 4
They need 4 times the amount of flour:
3 1/4 x 4 = 13
They need 13 cups of flour
To find the mean, aka average, we must add all the values of the table, then divide that sum by the number of values
A(b - c) = d
ab - ac = d
ac = ab - d
c = (ab - d)/a
Answer:
Step-by-step explanation:
Area = 84sqaure inch
Width = 2 1/2inch = 5/2inch
Area = l × width
So: 84 = l × 5/2
168 = 5l
l =>168/5
l = 33 3/5
