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Zepler [3.9K]
3 years ago
13

Josephine is taking a college course, and her professor bases the course grade on the average of 2 tests taken in the semester.

She wants to know what she needs
to earn on the last test to maintain her grade. Rearrange the following equation for b, where is the average of 2 test scores, a and b.
C=a+b/2

1. b=2c/a
2. b=2c+a
3. b=2c-a
4. b=2c(a)
Mathematics
1 answer:
balu736 [363]3 years ago
4 0

Answer:

answer b is b=2c+a okay it is right answer

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Simplify each radical
const2013 [10]

Answer:

AECG

Step-by-step explanation:

1

sqrt(49) = 7

sqrt(a^2) = a

sqrt(b^2) = b

For every two variables you can take one out from under the root sign and thorough the other one away.

Answer: E

2

sqrt(36) = 6

sqrt(a^2) = a  See comment for 1.

b must be left where it is. There is only 1 of them.

6asqrt(b)

Answer: A

3. sqrt(25) = 5

sqrt(b^2) = b

a must be left alone.  There's only 1 of them.

5b sqrt(a)

answer: C

4

sqrt(81 a b)

sqrt(81) = 9

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9 sqrt(ab)

Answer G

8 0
2 years ago
Answer this if you can
Soloha48 [4]
The answer is x=y. 

You'll see if you replace all the x's with y's.



6 0
3 years ago
What is the % of 37/50
Mrac [35]

Answer:

74%

Step-by-step explanation:

37/50= 0.74x100= 74%

6 0
3 years ago
Which expression represents the statement below:
ikadub [295]

Answer:

2x+16

Step-by-step explanation:

16 is your b( so to speak) in this expression so ? +16 (since 16 is a positive you add it) then it says double a number X so 2 times x equals 2x 2x+16 is your expression

7 0
3 years ago
If i have 2 c's 2 A's 3 b's and 1 d what is my gpa and would i be able to pass 8th grade
IgorC [24]
A= 4 points
B= 3 points
C= 2 points
D= 1 point
F= 0 points

So you add 2+2+4+4+3+3+3+1
Which equals 22
Now divide 22 by 8
You get 2.75
So yes with a 2.75 gpa you should pass 8th grade as most schools require nothing less than a 2.0
8 0
3 years ago
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