The range of Ervin's scores is 55.
Range is the difference between the largest number and the smallest number.
To find the range of a set of values, first sort the values numerically (smallest to largest). With this set, it would look like this: 138, 142, 155, 165, 172, 193. Lastly, subtract 138 from 193 to find the range. By doing so, you will get 55 as an answer.
I hope this helps!
Answer:
10
x + y = 5
Step-by-step explanation:
Using the formula, write in standard form.
Answer: n + d = 30
0.05n + 0.10d = 2.20
^^ ur system of equations
Step-by-step explanation:
The answer is definatly C but if you know the answer why did you ask???
Anyway, hope this helps, and please mark brainliest!!!!!!!!!!!