Answer: 260 gallons
Step-by-step explanation:
We can use a proportion to solve this problem. We know that a family used 15 gallons of milk every 3 weeks. Since the problem asks for how much they will need for a year, we can gather that a year is 52 weeks. We can come up with the following proportion.
[cross multiply]
[divide both sides by 3]

Therefore, they will need to purchare 260 gallons.
We know that
sector c is 35% of the total area of the circle
if 360°----------> represent the 100% of the circle
x-------------> 35%
x=35*360/100----> x=126°
the answer is
the central angle for sector c is 126°
Answer:
20
Step-by-step explanation:
This reads mathematically exactly how it is stated in words. The word "is" means =, the word "of" means multiply, and "what number" is x. Therefore, the equation from that looks like this: 16 = .80x. Don't forget that you cannot use a percent in an equation without first changing it to its decimal equivalency. Solve that for x by dividing both sides by .80 to get that x = 20
Answer:
Step-by-step explanation:
%change=100(final-initial)/initial
%change=100(228-302)/302
%change=100(-74)/302
%change=-24.5%
Answer:
15units
Step-by-step explanation:
BC is: 5x=5×3=15 units. so,Length of BC=15 units