b. Homework---93, 97, 100
please type how you calculated your answer?
Answer:
Test's average-95
Homework's average-96.67
Step-by-step explanation:
Average is mathematically defined as the sum of the values divided by the total number of values and is expressed as:
The Tests' average is calculated as:
Hence, the Tests' average is 95
#The Homework's average is calculated as:
Hence, the Homework's average is 96.67
Answer: 35%
Step-by-step explanation: To find the percent decrease, we use the following formula.
The amount of change is the difference between the two numbers which in this case is 60 - 39 and the first number is 60.
60 - 39 is 21 so we are left with 21/60.
60 divided into 21 .35 times. However, our problem is asking for the percent which means we can move the decimal point two places to the right to get 35.
Therefore, the percent decrease is 35%.
Answer:
7. A
8. C
9. C
10. A
Step-by-step explanation:
You just have to work each one out. This is very simple.
Answer:
$1,236.25
Step-by-step explanation:
Since sales tax is 7.5% of the purchase, and since the pc costs 1,150, take 7.5% of 1,150, and add 1,150 and the new value together.
7.5 / 100 = 0.075
1150 * 0.075 = 86.25
1150 + 86.25 = 1236.25