15 plz ! theo finds finds a larger container of batteries in a basement. he randomly selects and tests 14 of the batteries and finds that 4 of them do not work. there are 76 batteries in the container. which is the best prediction for the number of batteries that will not work. a) 29 b) 22 c) 18 d) 5

Your answer is B. 22.

The answer to ya question would be 22 batteries. Hope I was able to help,~Kashout kam

Ok here we go ..there are plenty of ways to solve such math problems but we will go for the smartest and easiest ..5x+2y=7  -2x+6y=9we rearrange them into the following ..by multiplying the 1st equation by 2 it becomes 10x + 4y = 14we rearrange it and so it becomes 10x = 14 - 4yas for the second equation we multiply it by 5 and rearrange it so it becomes as to the following ..-10x + 30y = 45rearranging so 10x = 30y -45now 10x equals both 14 - 4y and 30y -45so   14 - 4y = 30y -4531 = 26yy= 31/26 = 1.19 or around 1.2so by now we can calculate x easily as  -2x+6y=9so 2x = 6y -9 = 6 * 31/26 - 9 = -1.84  then x = - 0.92 or around -0.9best luck!