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Fittoniya [83]
3 years ago
9

Correct answers only please!

Mathematics
2 answers:
vesna_86 [32]3 years ago
7 0

Answer:

answer is a

Step-by-step explanation:

18.5+24.25+24.675+17.75=85.175

Crank3 years ago
3 0

Answer:

The correct option is A.

Step-by-step explanation:

Given information:

Homework {90, 94, 96, 90}

Class Participation {95, 99}

Test Grades {87, 75, 82 ,85}

Final Exam Grade {71}

Homework is weighted 20%, Class Participation is 25%, Test Grades are 30%, and Final Exam is 25%.

Homework=\frac{90+94+96+90}{4}\times \frac{20}{100}=18.5

\text{Class Participation}=\frac{95+99}{2}\times \frac{25}{100}=24.25

\text{Test Grades}=\frac{87+75+82+85}{4}\times \frac{30}{100}=24.675

\text{Final Exam Grade}=71\times \frac{25}{100}=17.25

Course average in AMDM is

18.5 + 24.25 + 24.675 + 17.75=85.175\approx 85

Therefore the correct option is A.

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1 cm = 500km the ratio is 1 to
Murrr4er [49]

Answer:

1:500

Step-by-step explanation:

Since it has already given you the conversion factor, the ratio is 1:500, where every 1 cm is 500 km.

4 0
3 years ago
Read 2 more answers
The sum of 6 consecutive even numbers is 270.What is the second number in this sequence?
Finger [1]

Answer: 42

Step-by-step explanation:

Let the six consecutive even numbers be x , x+2 , x+4 ,x+6 ,x+8 ,x+10.

Then According to the question , we have

x+(x+2)+(x+4)+(x+6)+(x+8)+(x+10)=270\\\\\Rightarrow\ x+x+2+x+4+x+6+x+8+x+10=270\\\\\Rightarrow\6x+30=270\\\\\Rightarrow\ 6x=270-30\\\\\Rightarrow\ 6x=240\\\\\Rightarrow\ x=40

Now, the second number from the above six consecutive even numbers  is x+2.

Substitute the value of x in it, we get

The second number in this sequence = x+2=40+2=42

3 0
3 years ago
Read 2 more answers
A waiting room is 2/3 full when 36 people are seated. How many people are in the waiting room when it is 1/2 full?
Ahat [919]
When 36 people are seated the room is 2/3 full.
So for 1/3 , 18 people are needed
It will be 3/3 full if 54 people are present

So there can be 54 people in total

Now for the room to be 1/2 full , people will be 1/2 x 54 = 27 people
6 0
3 years ago
The price of an item yesterday was $60. Today, the price fell to $42. Find the percentage decrease.
oksian1 [2.3K]

Answer:

-30% or 30% decrease

Step-by-step explanation:

What's percentage decrease?

  • Percent decrease is the difference between the initial value and new value, indicating a loss of value.
  • The formula to find percent decrease is \frac{NV-IV}{IV} * 100, where NV = new value and IV = initial value.

How do we solve this problem?

  • We know that the original value was $60, so that represents IV. Also, now that the price is $42, it represents NV.
  • Now, we plug in the values!
  • \frac{42-60}{60} * 100
  • \frac{-18}{60} * 100
  • -\frac{3}{10} * 100
  • -3 * 10
  • -30

Therefore, the answer is 30% decrease.

6 0
2 years ago
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