2^2 + 3*4 may be evaluated using order of operations (PEMDAS) rules. We must do the exponentiation first, followed by the mult., and only then the add'n.
2^2 + 3*4 = 4 + 12 = 16
So the original price is 40 dollars. We can see how much she saved by multiplying the original amount with the discount. 40 x .60=24. So she saved 24 dollars. We can then subtract 24 from 40 to get a price of 16 dollars.
I assume we are solving for x?
You need to isolate x on one side of the equation.
subtract 4x from both sides. This leaves -2x+3=-3. Because we need to isolate x we subtract 3 from both sides, leaving -2x=-6. Again we isolate x, divide both sides by -2. x=3
2x+3=4x-3
-2x+3= -3
-2x= -6
x=3
Answer:
great
Step-by-step explanation:
The mean of the students scores is 81.3, the median is 80.
If Ms.Mosher adds 5 bonus points to each student, the mean and median will both increase by 5 of the six student’s scores!
