Question

Calcule::::
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A)7/11=X/22
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B)X+1/2=24/6
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C)15/2=X+1/4
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D)2X-1/4=6/8
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*Ex:1 sobre(/) 2•

Answer 1

$\frac{7}{11} = \frac{x}{22} \\ 11x = 154 \\ x = \frac{154}{11} \\ x = 14 \\ \\ \\ \frac{x+1}{2} = \frac{24}{6} \\ 6x + 6 = 48 \\ 6x = 48-6 \\ 6x = 42 \\ x = \frac{42}{6} \\ x = 7 \\ \\ \\ \frac{15}{2} = \frac{x+1}{4} \\ 2x + 2 = 60 \\ 2x = 60-2 \\ 2x = 58 \\ x = \frac{58}{2} \\ x = 29 \\ \\ \\ \frac{2x-1}{4}= \frac{6}{8} \\ 16x - 8 = 24 \\ 16x = 24 +8 \\ 16x = 32 \\ x = \frac{32}{16} \\ x = 2$

Answer 2

Olá, Larissa, boa noite !

a) $\dfrac{7}{11}=\dfrac{x}{22}$

$11x=7\cdot22~~\Rightarrow~~x=\dfrac{7\cdot22}{11}=7\cdot2$

$\boxed{x=14}$

b) $\dfrac{x+1}{2}=\dfrac{24}{6}$

$\dfrac{x+1}{2}=4~~\Rightarrow~~x+1=8$

$\boxed{x=7}$

c) $\dfrac{15}{2}=\dfrac{x+1}{4}$

$2(x+1)=4\cdot15=60~~\Rightarrow~~2x+2=60$

$2x=58~~\Rightarrow~~\boxed{x=29}$

d) $\dfrac{2x-1}{4}=\dfrac{6}{8}$

$8(2x-1)=4\cdot6~~\Rightarrow~~16x-8=24$

$16x=32~~\Rightarrow~~x=\dfrac{32}{16}$

$\boxed{x=2}$

Espero ter ajudado, até mais ^^