R is 34.
Cross multiply, and isolate the variable.
Answer:
D. 10 miles
Step-by-step explanation:
As you know 2 inches=5miles so if you add 2 more inches that is equal to 5 miles you will have to add 5 and 5 which equal 10 miles.
Yes you would have to solve this problem by substitution method
The error bars on a graph the error or uncertainty of the measure graphed. You can use diffferent statistics to represent this deviation or error, so your graph should state which is being used.
Of the four options listed the only one valid, a frequently used, is the standard deviation (you could use, two standard deviations, or an interval of confidence).
The answer is standard deviation.