Answer:
12
Step-by-step explanation:
The least common denominator of the fractions is the least common multiple of the denominators.
Multiples of 3: 3, 6, 9, 12, 15, 18, ...
Multiples of 4: 4, 8, 12, 16, 20, 24, ...
The lowest multiple that is common to 3 and 4 is 12.
LCD of 1/3 and 3/4 is 12.
1/4
105 cc of 7% solution
245 cc of 17% solution
If x = volume of 7% solution, and y = volume of 17% solution, then:
x + y = 350
0.07x + 0.17y = 0.14(350)
Solve with substitution:
0.07x + 0.17(350 − x) = 0.14(350)
0.07x + 59.5 − 0.17x = 49
10.5 = 0.10x
x = 105
y = 245
The solution is in the attached file below
864 ft^2.
Area of the base = 16^2 = 256.
Area of the triangular sides = 4 * 1/2 * 16 * 19
Total area = 256 + 608
= 864 ft^2.
