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DIA [1.3K]
2 years ago
14

You score 90 on the midterm, 60 on the final, and 80 on the class project. What is your average score if the midterm is worth 30

%, the final is worth 50%, and the class project is worth 20%?
Mathematics
1 answer:
Art [367]2 years ago
3 0

Answer:

The average score is 73

Step-by-step explanation:

Your average score is the sum of each of your tests scores multiplied by the weight of the test.

We have that:

You scored 90 on the midterm

The midterm is worth 30%

You scored 60 on the final

The final is worth 50%

You scored 80 on the class project

The class project is 20%

Average score:

A = 90*0.3 + 60*0.5 + 80*0.2 = 73

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Forty percent of the sheets of construction paper are secondary colors. There are 25 sheets of construction paper. How many of t
Alja [10]
10 of those sheets are secondary colors.

40% = 0.4
0.4(25) = 10
4 0
2 years ago
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An account with a $250 balance accrues 2% annually. If no deposits or withdrawals are made, which graph can be used to determine
ollegr [7]

Answer:

7 years

Step-by-step explanation:

Because there is no graph, I will just tell you how many years it should take, and you can probably figure it out from there. To start, let's [get out a calculator] find out what 2% of 250 is. This is 5, so we can add 5. Notice that adding 5 to the number does not change 2% of it by much, only by 5/50 or 0.1. So, we can keep adding until we get above 282, which should take 285 minus 250 over 5 times, or 7. So, the answer is 7 years. You can [get out a calculator] and find out that it is indeed 7 years.

5 0
2 years ago
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Just the question about sandy))<br><br>A &amp; B
hammer [34]
A.) 50.45m + 60 = 57.95m

b.) 50.45m + 60 = 57.95m
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     60 = 7.50m
     60 / 7.50 = m
     8 = m.....so the cost will be the same at 8 months

7 0
2 years ago
The weight, w, of a spring in pounds is given by 0.9 times the square root of the energy, E, stored by the spring in joules. If
frutty [35]
For this case we have the following equation:
 w = 0.9* \sqrt{E}
 Where,
 w: The weight of a spring in pounds
 E: the energy stored by the spring in joules.
 Substituting values we have:
 w = 0.9* \sqrt{12}
 Making the corresponding calculation:
 w=3.12
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the approximate weight of the spring in pounds is:
 
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4 0
2 years ago
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For the sequence an = 2n + 1, identify the values of a0 = _____, a1 = _____, a2 = _____, and a3 = _____.
Tresset [83]

Answer:

Option A -  a_0= 2,a_1= 3,a_2= 5,a_3= 9

Step-by-step explanation:

Given : For the sequence a_n= 2^n + 1

To find : Identify the values of following?

Solution :

The nth term of the sequence is a_n= 2^n + 1

Substitute n=0,1,2 and 3

When n=0,

a_0= 2^0+ 1

a_0= 1+1

a_0=2

When n=1,

a_1= 2^1+ 1

a_1= 2+1

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When n=2,

a_2= 2^2+ 1

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When n=3,

a_3= 2^3+ 1

a_3= 8+ 1

a_3= 9

Therefore, The value is a_0= 2,a_1= 3,a_2= 5,a_3= 9

So, Option A is correct.

4 0
2 years ago
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