Question

19. The wingspan of a ghost bat is 12 more than twice that of a vampire bat.

Suppose a ghost bat has a wingspan of 28 inches. Which equation can be
used to find the wingspan of a vampire bat?
A x + 2 + 12 = 28
C 2x – 12 = 28
B 2x + 12 = 28
D 12x + 2 = 28

Answer 1

B. 2x + 12 = 28

Explanation:

x is representative of the wingspan of the vampire bat. suppose the ghost bat has a wingspan of 28 inches.

if the wingspan of a ghost bat is 12 more than twice the vampire bat's, then 2x + 12 is the equation used to find the ghost bat's wingspan. we already know the ghost bat's wingspan is 28, therefore the equation is 2x + 12 = 28