Answer: 0.82 miles per gallon
Step-by-step explanation:
Given : Jenna has bought a new hybrid car. Each week for a period of seven weeks, she has noted the fuel efficiency (x) (in miles per gallon) of her car.
The results are :45 44 43 44 45 44 43
The formula to find the standard deviation is given by :-
First we find mean of the given data ,
Now,
Now, standard deviation of the above results will be :-
Hence, the standard deviation of these results = 0.82 miles per gallon
Answer:
X = 9/7
Y = 72/7
Step-by-step explanation:
You need to subtract equation 1 by equation 2 to get rid of y. Then substitute your answer to find y.
Answer:
Step-by-step explanation:
1 ton= 2,000 pounds
STEP 1:
Multiply number of tons by 2,000 pounds
= 3 tons * 2,000 lbs/ton
= 6,000 lbs
STEP 2:
Add the extra pounds given (600 pounds) to calculated pounds in step 1
= 6,000 lbs + 600 lbs
= 6,600 pounds
ANSWER: 3 tons 600 pounds is equal to 6,600 pounds.
Hope this helps! :)
A) The answer to the question is 2/3
b) the answer to the question is 2/3
