From the second:
2x-y=4
x=(4+y)/2 and applying this to first:
4+y+3y=12
4y+4=12
4y=8
y=2 and since x=(4+y)/2, x=3 so
x+y=2+3=5
40 - 4 = 36
average = 36/9 = 4
answer
average number of members who joined the math club is 4 per month
Answer:
280.5 mm^2
Step-by-step explanation:
scale * 25.5 mm = 127.5 mm 1275/25.5 = 5 scale factor
25.5 * 55/5 = 280.5 mm^2
A fraction could be 8/50 because you just multipley both of the numbers
Answer:
b C = 25m + 75
Step-by-step explanation:
The total cost for m months is the one time fee plus the cost per month times the number of months
C = fee + cost per month * m
C = 75 + 25m
Rearranging the equation
C = 25m + 75
