About 6 out of 10 people entering a community college need to take a refresher mathematics course. if there are 850 enteringâ students, how many will probably need a refresher mathematicsâ course?

510 students

Explanation: given that total student is 850

And Of every 10 student 6 will have to sit for a refresher math course

Hence the number that will need a refresher math course will be (850/10)*6= 510

Or better still to better understand this let's use the crossing multiplication method

of 10 student 6must do a refresher math then

Of 850 students x must do a refresher math

Cross multiplying we have

X=(850*6)/10=510 students

answer2/345y

explanation:

a manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. at the end of december, the company wishes to forecast sales for january. the estimate of trend through november has been 200 additional boards sold per month. average sales have been around 1000 units per month. the demand for december was 1100 units. the company uses α = 0.20 and β = 0.10. make a forecast including trend for the month of january.