What's the formula (1) Vega's speed is 14 kilometers per second, which is equivalent to 7 / 13 of Altair's speed. How many kilometers per second is Altair's speed? (2) Vega's speed is 14 kilometers per second, which is equivalent to 6 / 13 of Altair's speed. How many kilometers per second is Altair's speed?

What's the formula (1) Vega's speed is 14 kilometers per second, which is equivalent to 7 / 13 of Altair's speed. How many kilometers per second is Altair's speed? (2) Vega's speed is 14 kilometers per second, which is equivalent to 6 / 13 of Altair's speed. How many kilometers per second is Altair's speed?

(1) Vega's speed is 14 kilometers per second, which is equivalent to 7 / 13 of Altair's speed. How many kilometers per second is Altair's speed?
14 △ 7 / 13 = 26 (km / s)
(2) Vega's speed is 14 kilometers per second, which is equivalent to 6 / 13 of Altair's speed. How many kilometers per second is Altair's speed?
14 △ 6 / 13 = 91 / 3 (km / s)

A class of students participate in the mathematics interest group. Among them, 20% of the students in the class are boys, 27% of the students in the class are girls, and 2% of the students in the class are girls. The number of students who do not participate is 5 less than 35% of the students in the class. How many students are there in the class?

(5-2) / (20% + 27 + 35-1), = 3 ^ (15 + 27 + 35-1), = 3 ^ (735 + 1035 + 2135-1), = 3 ^ 335, = 3 × 353, = 35 (people); a: there are 35 people in the class

The total number of people doing exercises is certain, and the number of people in each line station is in direct proportion to the number of lines______ (judge right or wrong)

Because the number of people in each row x the number of rows = the total number of people (certain), the number of people in each row is inversely proportional to the number of rows