Answer:
80 hours.
Step-by-step explanation:
20,000 / 1,000 = 20
4 x 20 = 80
Hope this helps.
Answer:
1. d. 10.
2. d. 35t + 2.75; $142.75.
Step-by-step explanation:
1. f(-2) = -2*-2 + 6
= 4 + 6
= 10.
2. The answer is 35t + 2.75
and the cost of 4 tickets = 35*4 + 2.75 = $142.75.
It is valid.
The three angles must add up to 180. So, if one is more than 90, the other two have to be less than 90.
Answer:
B: A systematic random sample
Step-by-step explanation:
Systematic sampling is a type of probability sampling in which members of a larger population are chosen at random from a larger population but at a fixed, periodic interval. This interval, also known as the sampling interval, is calculated by dividing the population size by the sample size desired. Despite the fact that the sample population is chosen in advance, systematic sampling is still considered random if the periodic interval is set in advance and the starting point is chosen at random.
Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest if it's correct?
After 10 minutes, he's 40 miles away. After 22 minute, he's 34 miles away. Therefore, in those 12 minutes between, he covered 6 miles. We can make a ratio out of this: 6/12 = 0.5, so he is walking at a rate of 0.5 mi/min (miles per minute). Finally, we can set x/90 equal to 0.5/1 because he is walking at the same rate the entire time. Cross multiply to solve for x. Finally, you get that he had to travel 45 miles in 90 minutes, so his home is 45 miles away from his grandmother's.
