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 C is the average of 2 test scores, a and b. C=a+b/2
Please DO NOT say that this has already been answered, the answer options were different than this question.
Options:
a.) b = 2C/a
b.) b = 2C + a
c.) b = 2C - a
d.) b = 2C(a)

The equation C=a+b/2 can be rearranged for b as b=2C - a. Therefore, option C is the correct answer.

We need to rearrange an equation C=a+b/2 for b, where C is the average of 2 test scores, a and b.

By definition, an average is the arithmetic mean of the sum of all the values divided by the total number of values in a given set. An average is calculated for those sets of values which are more or less the same. The term average describes the numeric value that represents a large amount of data. An average can be derived by calculating the ratio of the sum of all the values to the number of units or values.

The equation C=a+b/2 can be rearranged for b as follows:

Now, C=a+b/2

⇒2C=a+b

⇒b=2C - a

The equation C=a+b/2 can be rearranged for b as b=2C - a. Therefore, option C is the correct answer.

To learn more about an equation visit:

https://brainly.com/question/14686792.

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Please solve!
6y-6=4y+16

What is the area of the object above?
A.
155 cm2
B.
60 cm2
C.
225 cm2
D.
120 in2

Please Help!!!! No "positive vibes" answers please!! :( Please write a detailed explanation of your answer! Best one gets brainliest!!!!

Please help me my Math Grade Is a D-

Find the sales price for a $900 TV with a 25% discount.
Discount = Regular Price X Rate of Discount Sales Price= Regular Price - Discount.
b. Discount (mark down Expression) = ((Original price – (Original price x discount rate))

At a book store there are 25 books on the clearance section. 20 of the books are young adult novels and the rest of the books are picture books. Which statement is not true? *
A) For every 4 young adult novels, there is 1 picture book
B) For every 5 books, 4 are young adult novels
C) The ratio of picture books to young adult novels is 1:4
D) There is 1 picture book for every 5 books
E) All statements are true

I’ll give brainliest PRONTO

Brad has walked 4/9 of his goal distance this month. If his goal is 27 miles, how many miles has Brad walked

PLEASE HELP ME WITH THIS!! I WILL GIVE EXTRA POINTS,AND BRAINLIST IF YOU ANSWER THIS CORRECTY!!

Find two numbers that add up 158. The greater number is 40 more than the lesster number.

A. 70 and 110
B. 99 and 59
C. 80 and 78
D. 98 and 60
E. 100 and 68

Using the slope formula, find the slopes of the line segments
AB and CD using the following points:

(a) A(-3, 1) and B(6, 4) (b) C(-2,8) and D(1,-1)
Slope AB = Slope CD =

What do you notice about their slopes?

Please help me I will give you the brain thing and extra points. (image below) 4/4

Please help me i am very bad a math
(thank you )

Choose the correct set of y-values for the function y = -2x when x = -2, 0, 2.
(-2, 4), (0, 0), (2, -4)
(-2, -4), (0, 0), (2, -4)
(-2, 4), (0, -2), (2, 4)
(-2, -4), (0, 0), (2, 4)

Jermaine buys T-shirts for $6 each and marks up the price by 45%.
How much profit does Jermaine make for each T-shirt sold?

Help w/ math, please & thanks!

Please help!

3(x-4)=5(x+2)

PLZ HELP!! Geometry! 10 points!

Find the unit rate Patricia paid $385 for 5 nights at a hotel. What is the cost for 1 night?

QUICKLY
Parallel lines r and s are cut by two transversals, parallel lines t and u. Which angles are alternate exterior angles with angle 11? Angle5 and Angle13 Angle7 and Angle15 Angle6 and Angle16 Angle8 and Angle14

Which of the following is a correct interpretation of the expression 2 - (-5)
A The number that is 5 to the left of 2 on the number line
B The number that is 5 to the right of 2 on the number line
C The number that is 2 to the left of -5 on the number line
D The number that is 2 to the right of -5 on the number line

Can you pls answer these questions?
I'm giving brainliest

Sorry this is irrelevant but would you eat this

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Martin decided to buy 2 bags of grapes weighing 5 and two-thirds pounds each, instead of the 3 bags weighing 4 and one-fifth pounds each, because the bigger bags were on sale. Did he end up with more grapes or less grapes by buying the bigger bags?

1.He ended up with about One-half pound less grapes.
2.He ended up with about One-half pound more grapes.
3.He ended up with about 1 pound less grapes.
4.He ended up with about 1 pound more grapes.

Help me plz i forgot to put this in the other question!

I got -1 5/43, did i mess something up?

What are these two equations in slope intercept form?

What is the slope of the line through (-4,2)(−4,2)left parenthesis, minus, 4, comma, 2, right parenthesis and (3,-3)(3,−3)left parenthesis, 3, comma, minus, 3, right parenthesis? Choose 1 answer: Choose 1 answer: (Choice A) A \dfrac57 7 5 ​ start fraction, 5, divided by, 7, end fraction (Choice B) B \dfrac75 5 7 ​ start fraction, 7, divided by, 5, end fraction (Choice C) C -\dfrac57− 7 5 ​ minus, start fraction, 5, divided by, 7, end fraction (Choice D) D -\dfrac75− 5 7 ​

What is the answer? Please help me!!! PLEASE!!!!

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What is the initial value, and what does it represent?

A. The initial value is 100; it represents money left over from last year's fundraiser

B. The initial value is 100; it represents money earned per card


C. The initial value is 2; it represents money left over from last year's fundraiser


D. The initial value is 2; it represents money earned per card