Question

ayúdenme por favor es de matemáticas ​

Answer 1

Respuesta:

$1)x + (x + 2) + (x + 4) = 81 \\ x + x + 2 + x + 4 = 81 \\ 3x + 6 = 81 \\ 3x = 81 - 6 \\ 3x = 75 \\ x = \frac{75}{3} \\ x = 25 \\ 25 + 2 = 27 \\ 25 + 4 = 29$

$2)\frac{1x}{3} + \frac{1x}{4} + 4.6 = x \\ 4.6 = x - \frac{1x}{3} - \frac{1x}{4} \\ 4.6 = \frac{5x}{12} \\ (4.6)(12) = 5x \\ 55.2 = 5x \\ x = \frac{55.2}{5} \\ x = 11.04$

$3)f = 25p \\ a = 3(25p) \\ a = 75p \\ p + f + a = 5050 \\ p + 25p + 75p = 5050 \\ 101p = 5050 \\ p = \frac{5050}{101} \\ p = 50 \\ f = 25(50) \\ f = 1250 \\ a = 75(50) \\ a = 3750$