Pensé un número, a ese número le sumé 15 y
obtuve como resultado 27.
¿Cuál es el número que
pensé​

si es suma tiene que ser 12+15=27

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.