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Alex73 [517]
2 years ago
13

Answer this question! i am having some trouble in khan..

Mathematics
1 answer:
anzhelika [568]2 years ago
8 0
The correct answer is 33 days
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Danielle’s chemistry professor has a complicated grading system. Each lab counts once and each test counts as two labs. At the e
Murrr4er [49]

Answer:

92

Step-by-step explanation:

Lab Scores are 84, 81, and 93

Test Scores are 89 and 94

Each lab counts once and each test counts as two labs. At the end of the semester there is a final lab that counts as three regular labs.

Total Number of Labs= (3X1)+(2X2)+(1X3) =3+4+3 =10

To recieve an A(90), the average of her scores must be 90.

Let her final lab score =b

Refer to the attached diagram

Total Score=624+3b

For her average =90

\frac{624+3b}{10}=90

Cross multiplying

624+3b =90 X 10

624+3b =900

3b =900-624

3b =276

Dividing both sides by 3

b= 92

She must score 92 in her final lab to receive an A.

6 0
3 years ago
What is the simplest form of the expression? <br> PLEASE HELP.
ser-zykov [4K]

Step-by-step explanation:

I hope it's correct... Ahhh... Now it's long enough to post

6 0
3 years ago
The area of this rectangle is 4x^2 what does coefficient 4 mean in terms of the problem
mestny [16]

Answer:

The length is 4 times the width

6 0
3 years ago
What is the answer to this problem 6(1-5m)
Ivahew [28]
Apply the distributive property.<span>6⋅1+6<span>(−5m<span>)

</span></span></span>Multiply <span>66</span> by <span>11</span> to get <span>66</span>.<span><span>6+6<span>(−5m)</span></span><span>6+6<span>(-5m)</span></span></span>Multiply <span><span>−5</span><span>-5</span></span> by <span>66</span> to get <span><span>−30</span><span>-30</span></span>.<span><span>6−30m</span><span>6-30m</span></span>Reorder <span>66</span> and <span><span>−30m</span><span>-30m</span></span>.<span>−30m+<span>6
So your answer is </span></span>−30m+6
5 0
3 years ago
Can someone help me with this question
Alex_Xolod [135]

Answer:

Yes.

Step-by-step explanation:

3 0
2 years ago
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