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GalinKa [24]
3 years ago
5

Joe takes part in math competitions. A particular contest consists of 25 multiple-choice questions, and each question has 5 poss

ible answers. It awards 6 points for each correct answer, 1.5 points for each answer left blank, and 0 points for incorrect answers. Joe is sure of 12 of his answers. He ruled out 2 choices before guessing on 4 of the other questions and randomly guessed on the 9 remaining problems. What is his expected score?
69.2
75.6
90.8
97.2
Mathematics
2 answers:
motikmotik3 years ago
7 0
<h2>C. 90.8 </h2>

Is the correct answer.

Hope I helped!

Romashka-Z-Leto [24]3 years ago
5 0

your answer is C.


HOPE THIS HELPS!!

PLEASE MARK ME AS BRAINLIEST!!



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MrRa [10]

Answer:

$40

Step-by-step explanation:

Fraction Navin gave his brother = 1/5

Remainder = 1 - 1/5

5/5 - 1/5 = 4/5

Fraction Navin gave his sister = 4/5 x 5/8 = 1/2

total amount Navin gave his siblings :

\frac{1}{5} + \frac{1}{2}

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Fraction that remains = 1 - 7/10

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Let a = amount Navin has initially

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3 years ago
The graph below represents the relationship between the number of days a book is overdue and the library fine charged. A graph t
Sedbober [7]

The number of days Christen's book is overdue could be 22 according to options given.

The graph which represents the relationship between the number of days a book is overdue and the library fine charged is attached below :

According to the graph, a constant relationship exists between the number of days a book is overdue and the library fine charged when the Number of days book is  overdue is about 19 days and above such that the library fine charged stays the same at $10.

Since we are told that Christen's fine for returning the book is the same as the fine she would have paid if book was returned yesterday, then, the number of days Christen's book is overdue could be 20 days and above.

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3 years ago
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stellarik [79]

Answer:

-0.25

Step-by-step explanation:

Coordinates of C  = (x_{1} ,y_{1} )=(1,2)

Coordinates of D =  (x_{2} ,y_{2} )=(-4,-2)

Let Coordinates of A= (x,y)

Since A point is located 1/4 the distance from C to D  

So the remaining distance from point A to D is 3/4

Thus the ratio of CA : AD = m:n=1:3

Now to find points of A we will use section formula i.e.

x=\frac{mx_{2}+nx_{1}}{m+n}

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Thus Find the x value for the point that is 1 over 4 the distance from point C to point D is -0.25

Hence option a is correct

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