Question

question 1 (1 point) dewayne is welding up two 12 - inch diameter pipes to each other. each of his welding rods makes a 2.58 - inch bead. how many welding rods will dewayne need to make one pass around this weld. round to the nearest whole number of welding rods. answer your answer. units

Explanation:

Step1: Calculate the circumference of the pipe

The formula for the circumference of a circle is $C = \pi d$, where $d = 12$ inches. So $C=\pi\times12\approx3.14\times12 = 37.68$ inches.

Step2: Determine the number of welding - rods

We know that each welding - rod makes a 2.58 - inch bead. To find the number of welding rods needed, we divide the circumference of the weld by the length of the bead per rod. Let $n$ be the number of welding rods. Then $n=\frac{C}{2.58}=\frac{37.68}{2.58}\approx14.6$.

Step3: Round to the nearest whole number

Since we can't have a fraction of a welding rod, we round 14.6 to the nearest whole number. Rounding 14.6 gives 15.

Answer:

15