Answer:
-2X/3+3
Step-by-step explanation:
The <u>correct answer</u> is:
Experiment
Explanation:
In an experiment, one group is given a treatment while at least one other group is not. After the treatment is finished, the results of the group that receive the treatment are compared with the results of the group (or groups) that do not receive the treatment, to determine if the treatment had any effect on the group.
In this problem, the different groups are the classes. Some classes use the new method, which is the treatment, while other classes do not. At the end of the year, the reading results of each class are compared to see if the treatment (new method) had any effect.
Answer:
or 
Step-by-step explanation:
The opposite of 
is 
Convert decimal number −0.75 to fraction 
.
Reduce the fraction to lowest terms by extracting and canceling out 25.
Least common multiple of 4 and 5 is 20. Convert 
and to fractions with denominator 20.
Since 
and 
have the same denominator, add them by adding their numerators.
Add -15 and 8 to get -7
Convert decimal number 0.4 to fraction 
. Reduce the fraction to lowest terms by extracting and canceling out 2.
Least common multiple of 20 and 5 is 20. Convert 
and to fractions with denominator 20.
Since and have the same denominator, add them by adding their numerators.
Add -7 and 8 to get 1.
Least common multiple of 20 and 4 is 20. Convert 
and 
to fractions with denominator 20.
Since and 
have the same denominator, subtract them by subtracting their numerators.
Subtract 15 from 1 to get -14.
Reduce the fraction 
to lowest terms by extracting and canceling out 2.
or
Hope this helps! Brainliest would be much appreciated! Have a great day! :)
30=1/2 inch
60=1/2x2=1 inch
90=1/2x3=1 1/2
shortest side is 1/2 inch, medium side is 1 inch, longest is 1 1/2
