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tiny-mole [99]
3 years ago
7

A student's math 123 grades are shown below. Category Weight Grade Homework 15% 36 Quiz 15% 60 Project 20% 75 Exam 1 15% 71 Exam

2 15% 9 Exam 3 20% 92 Calculate the student's final grade in math 123. Write your answer as a percent rounded to the nearest tenth. Don't include the percent sign.
Mathematics
1 answer:
muminat3 years ago
7 0

Answer:

The student's final grade in math 123 is 59.8.

Step-by-step explanation:

Note: The data in this question are merged. They are therefore sorted before answering the question as follows:

A student's math 123 grades are shown below.

Category          Weight        Grade

Homework          15%             36

Quiz                     15%             60

Project                20%             75

Exam 1                 15%              71

Exam 2                15%               9

Exam 3               20%             92

Calculate the student's final grade in math 123. Write your answer as a percent rounded to the nearest tenth. Don't include the percent sign.

Explanation to the answer is now given as follows:

The final grade of the student in math 123 can be calculated by adding together the products Weight and Grade obtained of each category as follows:

Final grade = (15% * 36) + (15% * 60) + (20% * 75) + (15% * 71) + (15% * 9) + (20% * 92) = 59.8%

The answer is already rounded to nearest tenth as required by the question.

Since the question also states that the percent sign should not be include, the student's final grade in math 123 is therefore 59.8.

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25+{2[3+8-7(25/5)+11]}
Inessa05 [86]
Let's solve it step by step:
(we start with the innermost bracket:  (25/5). This is equal to 5. :

25+{2[3+8-7(25/5)+11]} =
25+{2[3+8-7(5)+11]} =

now, we can multiply 7 and 5, which is 35

25+{2[3+8-35+11]} =

Now we can add all the numbers in the square bracket, 3,8 (that's 11), then -35 (which is -24) then 11 - all together it's -13
3+8-35+11=22-35=-13

25+{2[-13]} =

Multiplying 2 and -13
25+{-26} =25-26, which is -1

the final answer is -1






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Step-by-step explanation:

I used the guess and test strategy to find that:

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Solve for x: 3x − 2 > 5x + 10. (5 points)
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Answer:

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5 0
3 years ago
Janine babysits for $14.50 per hour. She also works as a dishwasher at her family's restaurant for $9.50 per hour. Her family ne
FrozenT [24]
The system of inequalities are
14.5·x + 9.5·y ≥ 140
7 ≤ y ≤ 10
x + y ≤ 15
2) 14.5·x + 9.5·y ≥ 140 represents the total amount of money Janine can earn
7 ≤ y ≤ 10 represents the range of values, Janine can spend dishwashing
x + y ≤ 15 represents the total number of hours Janine will like to work each week
3) 8 hours babysitting, 7 hours dishwashing
Step-by-step explanation:
The given parameters are;
The amount per hour Janine makes from babysits = $14.50
The amount per hour Janine makes from dishwashing = $9.50
The minimum number of hours Janine can spend dishwashing = 7 hours
The maximum number of hours Janine can spend dishwashing = 10 hours
The maximum number of hours Janine can work each week = 7 hours
The minimum amount she wants to make each week = $140
Let x represent the number of hours Janine spends babysitting and let y represent the number of hours Janine spends dishwashing
1) From the question, we have;
14.5·x + 9.5·y ≥ 140
7 ≤ y ≤ 10
x + y ≤ 15
2) Where
14.5·x + 9.5·y ≥ 140 represents the total amount of money Janine can earn
7 ≤ y ≤ 10 represents the range of values, Janine can spend dishwashing
x + y ≤ 15 represents the total number of hours Janine will like to work each week
Making, y, the subject of the formula of the above inequalities and plotting as functions is given as follows;
y ≥ 140/9.5 - (14.5/9.5)·x
y ≤ 15 - x
3) In order to earn as much money as possible given that the amount Janine earns from babysitting is more than the amount she earns from dishwashing, Janine should spend the least amount of time dishwashing, which is 7 hours, as given, and then spend the remaining 8 hours babysitting to receive $14.5 × 8 + $9.5×7 = $182.5
3 0
3 years ago
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