Question

Determine o valor de x e y. (Me ajudem, por favor)

Answer 1

Resposta:

a)

$\frac{15}{5} =\frac{20}{x}\\15.(x)=20.(5)\\15x=100\\x=\frac{100}{15}$

x≈ 6,666

b)

$\frac{2}{4}=\frac{3}{x} \\2(x)=3.(4)\\2x=12\\x=\frac{12}{2} \\x= 6$

c)

$\frac{18}{x}=\frac{14}{21} \\14.(x)=21.18\\14x=378\\x=\frac{378}{14}\\x= 27$

d)

$\frac{4}{10}= \frac{2}{x}\\4(x)=2.(10) \\4x=20\\x=\frac{20}{4}\\x=5$

$\frac{10}{12}= \frac{x}{y} \\\frac{10}{12}=\frac{5}{y}\\10.(y)=5.(12)\\10y=60\\y=\frac{60}{10} \\y=6$

Answer 2

a
2
5 henebsj mas seu proijeto foi feiro 193729