The time taken for cutting and molding a work piece is 8 minutes and 13 minutes respectively. A welder has to cut and mold 5 such work pieces. If he starts working at 1:00 p. m., what time he would complete
his work?

the answer is d

step-by-step explanation:

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.

12 dolars one is cheaper becasue 3 pairs is 6 means is sock is 2 while the 12 is cheaper