Solve like an algebraic equation
C= 2(3.14)r
remove ( )
C- 6.28r
divide by 6.28
C/6.28=r
hope this helps
Answer:
Question 1: <
Question 2: >
Question 3: <
Question 4: <
Step-by-step explanation:
The questions are repeating themselves but I tried to answer. For the first one, -2/3 is less than -1/6 because if you put the same denominator, that is what you get as your answer. Then, for the second one 2/3 is positive so you can automatically know it is greater than a negative fraction. Explanation for the third and fourth problems are the same as the first one.
Answer:
y=21 X=39
Step-by-step explanation:
expand brackets on first equation: 2x+2y=120
now divide the second equation by 2 on both sides:
2x+y/3=85
then subtract the second equation from the first equation
so (2x+2y) - (2x+y/3)
the 2x on both sides cancel out and you get 5/3 y
this is equal to the sum of the first equation subtract the second equation which is 35
divide both sides by 5/3 and you get
y=21
substitute y in the first equation and you get X=39
Answer:
Step-by-step explanation:
With the given information, we can write the line equation in slope intercept form. 
The slope, m, is -2/5
The Y-intercept, or b, is 100.
Replace m with -2/5 and b with 100.
Boys:12 girls:13 the average class has about 20 students 12 + 13 equals 25
