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VARVARA [1.3K]
3 years ago
6

Homework counts as 10%, quizzes as 20% and tests as 70%. If the homework grade is 92, quiz grade is 68 and test grade 81 what’s

the final grade?
Mathematics
1 answer:
Tresset [83]3 years ago
6 0

Answer:

Final\ grade=79.5

Step-by-step explanation:

Homework\ grade=92\\\\quiz\ grade=68\\\\Test\ grade=81\\\\Final\ Grade=10\%\ of\ homework\ grade+20\%\ of\ quizzes\ grade+70\%\ of\ test\ grade\\\\Final\ Grade=\frac{10}{100}\times 92+\frac{20}{100}\times 68+\frac{70}{100}\times 81\\\\Final\ grade=0.1\times 92+0.2\times 68+0.7\times 81\\\\Final\ grade=9.2+13.6+56.7\\\\Final\ grade=79.5

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The perimeter a rectangle is 46 in if the width of the rectangle is 9 inches what is the length ​
NeTakaya

The length of the rectangle is 14

<u>steps:</u>

9 + 9 = 18

46 - 18 = 28

28 ÷ 2 = 14

5 0
3 years ago
What is the value of q − 7 if q = −17?
sdas [7]

Answer:

-24

Step-by-step explanation:

-7 - 17 = -24.

3 0
1 year ago
Read 2 more answers
How do you divide $306 into the ratio of 9:5:3? Can someone give me some advice on how to solve this problem?
GarryVolchara [31]
In order to divide $306 into the ratio of 9 to 5 to 3, first you have to make each section of the ratio represented by a variable, and put it into an equation.

9x + 5x + 3x = 306

Our next step is to simplify the left side of the equation by combining all of the like terms, the ones that contain variables.

17x = 306

Finally, to solve this equation, you have to divide both sides by 17 to isolate the variable x on the left side of the equation.

x = 18

However, this is not our answer as it isn't in a ratio format and doesn't really make sense. To find our ratio, we have to multiply each of our initial numbers (9, 5, and 3) by our variable, x.

9 * 18 = 162
5 * 18 = 90
3 * 18 = 54

You can verify that these numbers are correct because if you add them together you get 306.

Your final ratio is 162:90:54.

Hope this helps! :)

If you have a separate specific question about pre-tax prices and PMed me the link, I'd be happy to help you.
4 0
3 years ago
Suppose that in a large class, the instructor announces that the average grade on an exam is 75. Which is more likely to be clos
mario62 [17]

The mean of 10 randomly selected students is definitely more likely to be closer to 75. 10 randomly selected students to include information and are more like to reflect the class’s scores. Consider an extreme example. Seventy-five students in a class of 100 earned perfect scores. The other 25 earned zeros. The average score of the class would be 75. A sample of 10 random students would almost certainly include more 100s then 0s, but both would be included in the sample. The mean of this samples score is closer to 75 than any individuals.

8 0
3 years ago
Use the order of operations to simplify the expression.<br> 4[3+3(5-1)]<br> What is the answer?
Nitella [24]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{60}}}}}

Step-by-step explanation:

Using PEMDAS rule

Parentheses, Exponents , Multiplication, Division, Addition, Subtraction

\sf{4 [ 3 + 3(5 - 1) ]}

Subtract 1 from 5

\longrightarrow{ \sf{4 [3 + 3 \times 4  ]}}

Multiply the numbers : 3 and 4

\longrightarrow{ \sf{4 [ 3 + 12  ]}}

Add the numbers : 3 and 12

\longrightarrow{ \sf{4 \times 15}}

Multiply the numbers : 4 and 15

\longrightarrow{ \sf{60}}

Hope I helped!

Best regards! :D

3 0
3 years ago
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