Answer:30x=840 30 represents the number of days and x represents miles per day
b)yes because 30 (28)= 840 miles
c)yes because 30(40)= 1200 miles and the question said at least 840 so it can be more
d)30(11)=330
e) 10,800- 4,015 miles =6785 miles will be saved
Step-by-step explanation:
State A has 4/35 of the largest cities in the country.
A has twice as many largest cities in the country than State B does.
This means State B has 2/35 of the largest cities in the country.
Answer:i
Step-by-step explanation:
Complete question:
A project is graded on a scale of 1 to 5. If the random variable, X, is the project grade, what is the mean of the probability
distribution below?
Grade(X)_____ 1_____2_____3_____4_____5
Frequency____3 _____5____ 9 ____ 5 ____ 3
P(X) : _______ 0.1 ___0.2 ___0.4 ___ 0.2 __0.1
Answer:
3
Step-by-step explanation:
Given the probability distribution :
Grade(X)_____ 1_____2_____3_____4_____5
Frequency____3 _____5____ 9 ____ 5 ____ 3
P(X) : _______ 0.1 ___0.2 ___0.4 ___ 0.2 __0.1
The mean of the distribution :
Σ(X * P(X)) :
(1*0. 1) + (2 * 0.2) + (3 * 0.4) + (4 * 0.2) + (5 * 0.1)
0.1 + 0.4 + 1.2 + 0.8 + 0.5
= 3
Answer:
4 and 6 are complementary because they are alternate exterior angles
