Agrocer has two kinds of candies, one selling for 90 cents a pound and the other for 40 cents a pound. how many pounds of each kind must he use to make 100 pounds worth 85 cents a pound?

If you would like to know how many pounds of each kind of candy must the grocer use to make 100 pounds worth 85 cents a pound, you can calculate this using the following steps:

Candy number 1:
c pounds = ? ... 90 cents a pound
Candy number 2:
d pounds = ? ... 40 cents a pound

c + d =  100 pounds
c = 100 pounds - d

c * 90 cents + d * 40 cents = 100 pounds * 85 cents
(100 - d) * 90 + d * 40 = 100 * 85
100 * 90 - 90 * d + d * 40 = 100 * 85
100 * 90 - 100 * 85 = 90 * d - 40 * d
500 = 50 * d
d = 500 / 50
d = 10 pounds

c = 100 pounds - d = 100 - 10 = 90 pounds

There should be 90 pounds of candy number 1 and 10 pounds of candy number 2.

90 pounds * 90 cents + 10 pounds * 40 cents = 8500 cents per 100 pounds
8500 cents / 100 pounds = 85 cents a pound

The academic affairs council is the highest expert body processing academic affairs, as stipulated by the university statutes. specialist aaro häkkinen (educational policy) took part in the council’s meeting. the agenda of the meeting included bachelors’ feedback, the timing of pedagogical studies, the grant system for tuition fees, the standardisation of administrative practices for internships and the situation of foreign-language and multilingual master’s programmes.