Answer:
Step-by-step explanation:
Substituting y = 4x+1 into 2y = -x-1 gives the equation
2(4x+1) = -x-1
Solve the equation:
8x+2 = -x-1
9x = -3
x = -⅓
Relative frequency is the value assigned to each class in the proportion of the total data set that belongs in the class.
Relative frequency formula is :
--------------------(1)
So for class 0 to 5 miles we have 247 fans. So this class frequency is 247.
Total fans surveyed is 500
So plug these values in relative frequency formula given by (1)
relative frequency = 
On simplifying we get
relative frequency = 0.494
So choice (c) 0.494 is the right answer
Answer:
Step-by-step explanation
Look at it this way:
If you increase something by 80 percent, your multiplying it by 1.8. This goes the same way for 50 percent. If you multiply 1.8 by 1.5, you will get 2.7. Then convert 2.7 to increasing something by 170 percent. So the answer is 170 percent.
Benchmark are numbers that are used as standards to which the rest of the data is compared to. When counting numbers using a number line, the benchmark numbers are the intervals written on the axis. For benchmark numbers of 10, the number line on top of the attached picture is shown. Starting from 170, the tick marks are added by 10, such that the next numbers are 180, 190, 200, and so on and so forth. When you want to find 410, just find the benchmark number 410.
The same applies to benchmark numbers in intervals of 100. If you want to find 170, used the benchmark numbers 100 and 200. Then, you estimate at which point represents 170. For 410, you base on the benchmark numbers 400 and 500.