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AURORKA [14]
3 years ago
14

As instructor grades exams, 30%; term paper, 20%; and final exam, 50%. A student had grades of 75,80, and 85, respectively, for

exams, term paper, and final exam. Find the students final average. Use the weighted mean. Round your answer to one decimal place.
The students final average is ________?
Mathematics
1 answer:
Leni [432]3 years ago
6 0
Okay, so 75 counts for 30% (exams), 80 counts for 20% (term paper), and 85 counts for 50% (final exam)

So you would multiply 30% by 75, 20% by 80, and 50% by 85. That would be 22.5, 16, and 42.5. Add these numbers up, and put them over the total percentage, 100%. So you would have 81/100. The student's final average is 81%.
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Steve drives at a constant speed of 59.3 mph. How far should he expect to drive in 7/8 hr?
Olenka [21]

Answer:

51.9 miles

Step-by-step explanation:

distance  = speed * time

d = 59.3 * 7/8

d = 51.8875 miles

rounded

51.9 miles

5 0
2 years ago
2 circles labeled Set A and Set B overlap. Set A contains 1, set B contains 3, and the overlap of the 2 circles contains 2. The
mezya [45]

The region(s) represent the intersection of Set A and Set B (A∩B) is region II

<h3>How to determine which region(s) represent the intersection of Set A and Set B (A∩B)?</h3>

The complete question is added as an attachment

The universal set is given as:

Set U

While the subsets are:

  • Set A
  • Set B

The intersection of set A and set B is the region that is common in set A and set B

From the attached figure, we have  the region that is common in set A and set B to be region II

This means that

The intersection of set A and set B is the region II

Hence, the region(s) represent the intersection of Set A and Set B (A∩B) is region II

Read more about sets at:

brainly.com/question/24713052

#SPJ1

8 0
1 year ago
A sum of money when invested for a definite period at r% simple interest will yield an interest of rm80 .using the same interest
maks197457 [2]
The invest could probably be maybe 8% for a question
7 0
2 years ago
enuity CUBetween which two numbers will you find 5.634 x 102?OA) 0.0562 and 0.0563OB) 0.0563 and 0.0564OC) 562 and 563OD) 563 an
Rudiy27

The number:

5.634\times10^2

is going to be between the numbers 563 and 564; since 10 squared equals 100 and the decimal point will move to places to the right.

Therefore, the answer is D.

8 0
1 year ago
Value of 81 to the power of - 1/2​
Leokris [45]

Answer:

1/9

.........................

5 0
2 years ago
Read 2 more answers
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