Question

Calcule a expressão numérica

5/2×7÷[2/5+1/2×(1,75-0,99)+12]=​

Answer 1

Resposta: 1,369

Explicação passo-a-passo:

5/2×7÷[2/5+1/2×(1,75-0,99)+12]=​

17,5÷[0,4+0,5x(0,76)+12]=

17,5÷[0,4+0,38+12]=

17,5÷[12,78]=1,369

Answer 2

Resposta:

$\frac{1750}{1377}$    ou   $1,27088$

Explicação passo-a-passo:

$\frac{5}{2}.7$ ÷ $[\frac{2}{5}+\frac{1}{2}.(1,75+099)+12]$

$\frac{5}{2}.7$ ÷ $[\frac{2}{5}+\frac{1}{2}.2,74+12]$

$\frac{5}{2}.7$ ÷ $[\frac{2}{5}+\frac{1}{2}.\frac{137}{50}+12]$

$\frac{5}{2}.7$ ÷ $[\frac{2}{5}+\frac{137}{100}+12]$

$\frac{5}{2}.7$ ÷ $\frac{1377}{100}$

$\frac{5}{2}.7.\frac{100}{1377}$

$5.7.\frac{50}{1377}$

$\frac{1750}{1377}$  ou $1,27088$

Bons estudos!

Espero ter te ajudado!! =)