Answer:
12 discs
Step-by-step explanation:
Sheet metal has dimensions of 56 cm by 33 cm. This indicates that it is a rectangle.
A_rectangle = length × width
A_rect = 56 × 33
A_rect = 1848 cm²
It is now melt down and recast into disc's of 7 cm radius and similar thickness.
Thus;
Area of one disc = πr² = π × 7² = 49π
Thus,number of disc's cast = 1848/49π
number of disc's cast = 12
We have 200 calculators and x are scientific. That means (200-x) are financial.
Total cost = 89x + 599(200-x)
Divide 168.2 / 58 to get 2.9 miles per day on average
Answer:
7.50 x = 35 Answer is around 4.6 hours
Step-by-step explanation:
Divide 35 by 7.50 to find the number of hours.
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