David spends 100 minutes exercising everyday. We can make a proportion here, and it is very easy. 40%/100% = 40 minutes/ x minutes. Because the two sides have the sane numerator, they must also have the same denominator to be equal.
1 lawnmower= 8hours/12 =2/3 hour
30 lawnmowers= 30*2/3hour= 20 hours
Answer: Option D: R = {3, 9, 12}
Step-by-step explanation:
The range of a function is the set of the possible outputs of a function:
if we have the function f(x) = y, the values of x are the domain, and the values of y are the range.
In the image, the set at the right is the output, so the set in the right is the range.
such that we have the pairs (-2,3) (2, 3) (3, 9) (4, 12)
So the range will be R = {3, 9, 12}
Answer:
C) 7.54
Step-by-step explanation:
first, line up the decimal point, which has been done properly. now, add as though the decimal point doesn't exist, just add normally. you get 754. now, you slide the decimal point down, there are 2 places after the decimal (we assume that 6.8 is 6.80, doesn't change anything), so that's how many will be there in the answer. therefore, 7.54.