Question

alguien que porfa me ayude con esto

Answer 1

Respuesta:

1.-   m = 10

2.-   x = 27

3.-   a = 9

4.-   y = 4

5.-   x = 77

Explicación paso a paso:

$1)\\\\\frac{m}{12}=\frac{60}{72}\\\\m(72) =60(12)\\\\72m=720\\\\m=\frac{720}{72}\\\\m = 10$

$2)\\\\\frac{9}{13}=\frac{x}{39}\\\\9(39)=x(13)\\\\351 = 13x\\\\x=\frac{351}{13}\\\\x=27$

$3)\\\\\frac{54}{42}=\frac{a}{7} \\\\54(7)=a(42)\\\\378 =42a\\\\a=\frac{378}{42}\\\\a=9$

$4)\\\\\frac{15}{y}=\frac{75}{20} \\\\15(20)=75(y)\\\\300=75y\\\\y=\frac{300}{75} \\\\y =4$

$5)\\\\\frac{11}{9}=\frac{x}{63}\\\\11(63)=x(9)\\\\693 =9x\\\\x = \frac{693}{9}\\\\x=77$