Johan is mixing paint. He mixes 2 pints of blue paint and 4 14.pints of yellow paint.
Which of the following has a ratio of blue paint to yellow paint that is proportional to the amounts used in Johan's paint mixture?
A
pints of blue paint and 2
pints of yellow paint
15
pints of blue paint and 2
21
pints of yellow paint
81 pints of blue paint and 5 } pints of yellow paint
D
8 ſ pints of blue paint and 167
pints of yellow paint

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

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3

Julie begins counting backwards from 1000 by 2’s and at the same time tony begins counting forward from 100 by 3’s.   if they count at the same rate, what number will they say at the same time?