Question

1-2 sau toate 3 pplss





scz am dat pe Limba Romana

Answer 1

1)

f=4/5 x b

f+b=27

$\frac{4}{5} b + {}^{5)} b = {}^{5)} 27 \\ \\ \frac{4b}{5} + \frac{5b}{5} = \frac{135}{5} \\ \\ 4b + 5b = 135 \\ 9b = 135 \\ b = 135 \div 9 \\ b = 15$

$f = \frac{4}{5} \times b \\ f = \frac{4}{5} \times 15 \\ f = \frac{4 \times 15}{5} \\ f = 4 \times 3 \\ f = 12$

2)

a+b=60

a-b=24

a=24 +b

24+b + b=60

2b=60-24

2b=36

b=36:2

b=18

a=24+b

a=24+18

a=42

…ᘛ⁐̤ᕐᐷ…ᘛ⁐̤ᕐᐷฅ^•ﻌ•^ฅ