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2 answers:
Answer:
103.62
Step-by-step explanation:
Formula: v = πr², v = πr²h
Given: π = 3.14, r = 3, h = 5
Sub: 3.14(3)²
Simplify: 3.14(9)
Simplify: (28.26)
Solve: 47.1
Given: π = 3.14, r = 3, h = 6
Sub: 3.14(3)6
Simplify: (9.42)6
Solve: 56.52
V = v1 + v2
V = 47.1 + 56.52
V = 103.62
<u>The total volume of the figure is 103.62</u>
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Answer:
1. $35.075
2. 43.5 hours
3. 70%
4. Danny is correct
5. Abe's score out of the 30 points of the last quiz to get an overall checkup quiz grade of 80% should be 28.5
Step-by-step explanation:
The pay per hour for student tutors = $5.75
1. A tutor who worked 3.4 hours on Monday and 2.7 hours on Thursday has worked, 3.4 + 2.7 = 6.1 hours for the week, therefore
The week earning for the tutor = 6.1 × 5.75 = $35.075
2. The Club's tutoring budget per week = $250
The number of tutoring hours that can be provided per week is given by the relation;
3. The score of 21 out of 30 as a percentage is given as follows;
4. Where the second score is 45 out of a total of 60 points, we have;
Therefore, the increase in Abe's score is 5%, therefore, Danny is correct
5. To raise his checkup quiz grade to 80% overall, then we should have;
Where:
Q = The percentage grade of the last quiz
(145 + Q)×100 = 80×300 = 24000
145 + Q = 240
Q = 240 - 145 = 95%
Therefore, he has to score, 95% of 30 on the last quiz, which is thus;
Abe's score out of the 30 points of the last quiz to get an overall checkup quiz grade of 80% = 28.5 points.