Question

Ayuda porfavor ºººººº

Answer 1

Debes utilizar la regla de tres. (El valor de x es la respuesta).

Colegio 2:

400 ----> 100%

25 ------> x%

x = 100 × 25 ÷ 400

x = 2500 ÷ 400

x = +6.25%

Colegio 3:

200 ---> 100%

50 -----> x%

x = 100 × 50 ÷ 200

x = 5000 ÷ 200

x = +25%

Colegio 4:

550 ---> 100%

150 ---> x%

x = 100 × 150 ÷ 550

x = 15000 ÷ 550

x = -27.27%

Colegio 5:

500 ----> 100%

50 ------> x%

x = 100 × 50 ÷ 500

x = 5000 ÷ 500

x = -10%

Colegio 6:

520 -----> 100%

130 ------> x%

x = 100 × 130 ÷ 520

x = 13000 ÷ 520

x = +25%

Colegio 7:

300 ----> 100%

100 -----> x%

x = 100 × 100 ÷ 300

x = 10000 ÷ 300

x = -33.33%

Colegio 8:

450 ----> 100%

150 -----> x%

x = 100 × 150 ÷ 450

x = 15000 ÷ 450

x = -33.33%

Colegio 9:

600 ------> 100%

120 -------> x%

x = 100 × 120 ÷ 600

x = 12000 ÷ 600

x = -20%

Colegio 10:

650 ------> 100%

250 ------> x%

x = 100 × 250 ÷ 650

x = 25000 ÷ 650

x = +38.46%