Answer:
The number series 1, 3, 5, 7, 9, . . . . , 59. Therefore, 900 is the sum of first 30 odd numbers.
Answer:
X =2 Y= 10
Step-by-step explanation:
EF ~ BC 8/20= 0.4 AB~DE 15*0.4 =6 6-4 = 2
AC~DF 25*0.4 = 10
So you want to set up an equation for a weighted average. You know the final is 30% of the grade, so everything else is 70%. This gives you:
(Final)(.30) + (other grades)(.70) = course grade
The best grade the student can get would be if they get a hundred on the final, since that’s the best score you can make on the final. Then,
(100)(.30) + (82)(.70) = course grade
30 + 57.4 = course grade = 87.4 Which, If you round, the student would get an 87.
For the last part, we use the same equation, just filling in different parts.
(Final)(.30) + (other grades)(.70) = course grade
This time, we don’t know the grade for the final, but we know the course grade.
(Final)(.30) + (82)(.70) = 75
(Final)(.30) + 57.4 = 75
(Final)(.30) = 17.6
Final = (17.6)/(.30)
Final = 58.667 Which is approx a 59.
Answer: A=16
Step-by-step explanation:
24=a+8
-a=8-24
-a=-16
Answer:
43.2
Step-by-step explanation:
First you take off 20% from $60, and get $48, but you would take 10% off and get 43.2.
