Answer:
C. 70
Step-by-step explanation:
x + (x + 40) = 180
2x + 40 = 180
2x = 140
x = 70
Answer:
1=5 so x=4.5
Step-by-step explanation:
so 11x-9=7x+9
4x=18
x=18/4
x=4.5
You were probably given a number to plug into the equation , which is no different then it being y=x-4 , just solve for the f(x)
50/36 = 1.39 per litre (or 1.86 dollars for those in the United States)
Answer:
Step-by-step explanation:
The average is 81 a low B, but if you throw out the low score it rises to 88.8, a high B.
I would use the median 88, 89 since it is higher and is a more accurate representation of the majority of the class