R10. Un libro y una revista cuestan $140. Se sabe que el costo del libro menos el doble del costo de la revista es igual a $20,
¿cuánto cuestan el libro y la revista? *
A) El libro cuesta $90 y la revista $50.
B) El libro cuesta $120 y la revista $20
Ο Ο Ο Ο
O C) El libro cuesta $ 100 y la revista $40.
O. D) El libro cuesta $110 y la revista $45.
R11. ¿Cuál es el desarrollo plano que permite la correcta
construcción de un cono? *

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)

answer: the first graph

step-by-step explanation:

step-by-step explanation:

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.