Question

me podrian ayudar porfavor ​

Answer 1

4.

X+4

5.

a=2b

b=2c

c=2d

a+b+c+d=90

2b+2c+2d+d=90

4c+4d+2d+d=90

8d+4d+2d+d=90

15d=90

d=6

Mira de arriba hacia abajo

a=2b-->2(24)=48

a=2b-->2(24)=48b=2c-->2(12)=24

a=2b-->2(24)=48b=2c-->2(12)=24c=2d-->12

a=2b-->2(24)=48b=2c-->2(12)=24c=2d-->12d=6

6.

Lo siento no logre resolverlo

7.

$area = \frac{base \times altura}{2} \\ area = \frac{45 \times 10}{2} \\ area = 45 \times 5 = 225$

8.

$area = base \times altura\\ area = 5 \times 3 = 15$

Espero te sirva