Toby skated from his house to the beach at a constant speed of 888 kilometers per hour, and then skated from the beach to the park at a constant speed of 777 kilometers per hour. The total distance Toby skated was 202020 kilometers, and it took him twice as long to get to the park. Let bbb be the number of hours it took Toby to skate from his house to the beach, and ppp the number of hours it took him to skate from the beach to the park. Which system of equations represents this situation? Choose 1 Choose 1 (Choice A) A 8b+7p=20 b=2p ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ 8b+7 p=20 b=2p (Choice B) B 8b+7p=20 p=2b ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ 8b+7p=20 p=2b (Choice C) C 7b+8p=20 b=2p ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ 7b+8p=20 b=2p (Choice D) D } 7b+8p=20 p=2b ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ 7b+8p=20 p=2b

Find the value of ax 4 ; a = 2, x = 1. select one: a. 2 b. 4 c. 1 d. 8

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?

Atriangle has side lengths of x, x+11, and 3x+5. what is the perimeter? a. 3x^2 + 38x + 55 b. 4x + 16 c. 5x + 16 d. 3x^3 + 38x^2 + 55x