Achalk company gets an order for 3000 boxes of chalk at the beginning of the school year, the largest order they have ever received. each box contains 145 grams of chalk. if the efficiency of their chalk production process is 82% and the theoretical yield of the production process is 400,000 grams, will they make their goal?

Given that the efficiency of chalk production is 82 %

We can calculate the efficiency of chalk production using the formula,

% Efficiency

Calculating actual yield from % efficiency an theoretical yield:

82 %

Actual yield =

Each chalk box has 145 g chalk

Number of boxes =

The goal of the chalk box company is to prepare 3000 boxes of chalk. So, the company will not be able to reach the goal as it can just prepare 2262 boxes when the efficiency is 82 %

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.