A straw for a box drink is 4 1/8 inches long and costs $0.015 to make. The straws are laid end-to-end on the conveyor belt until they extend 82 1/2 inches. How many straws are in the line and how much do they cost?
82 1/2 divide 4 1/8 = 165/2 divide 33/8 = 165/2 multiply 8/33 = 660/33
660 divide 33 = 20
0.15 multiply 20 = 30
30 straws
Did I do it right?
looks like you did
660/33 = 20 straws
20 * $.015 = $.30
I agree with addisonn
To determine the number of straws in the line and their total cost, we can use the given information.
First, let's convert the length of one straw from a mixed number to an improper fraction for easier calculations:
4 1/8 inches = (4 * 8 + 1) / 8 = 33/8 inches
Next, we can find the number of straws in the line by dividing the total length (82 1/2 inches) by the length of one straw (33/8 inches):
82 1/2 inches / (33/8 inches) = (165/2) / (33/8) = (165/2) * (8/33) = 660/66 = 10
So, there are 10 straws in the line.
To calculate the total cost, we need to multiply the number of straws by the cost per straw:
10 straws * $0.015/straw = $0.15
Therefore, there are 10 straws in the line, and they cost $0.15 in total.