721345

21.06.2019 • 

Mathematics

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables

Ответ:

yasmineeee96371

13.06.2022

Mathematics

---

7/2 = 63/g..7 red apples to 2 green apples = 63 red apples to g green apples
cross multiply
(7)(g) = (2)(63)
7g = 126
g = 126/7
g = 18

so they sold 63 red apples and 18 green apples...for a total of (63 + 18) = 81 apples sold

---

0,0(0 оценок)