Find the value of b such that the system of equations

bx - 12y = 12
15x - 18y = -19

does not have a solution.

b=

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}

believe it or not anna is correct good job anna give me a fist bump there u go gal

320ft

step-by-step explanation:

120 divided by 3 equals 40

40 times 4=160

160 times 2=320