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GenaCL600 [577]
3 years ago
10

A class consists of 8 freshman and 22 sophomores.Freshman had an average of x points on a test,while sophomores had an average o

f y points.which expression gives the average test score per student for the entire class?

Mathematics
1 answer:
nirvana33 [79]3 years ago
3 0

It's C because you need to find how many points each student earned per grade (freshman & sophomore). Then you multiply it by 30 to find out how many points each student scored in the whole class.

Hope this helps!

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I need help on this question and every time I get help on this question some people get it wrong. can someone give me the right
LenaWriter [7]

Answer:

x = 8

y = -7

Step-by-step explanation:

  • (-3y) - 4x = -11

3y - 5x = -61

-----------------------+

-9x = -72

x = 8

  • 3y - 5x = -61

3y -5(8) = -61

3y - 40 = -61

3y = -21

y = -7

8 0
3 years ago
Describe how the graph of y = x2 can be transformed to the graph of the given equation.
Vikki [24]
 <span>1.Describe how the graph of y = x2 can be transformed to the graph of the given equation. 

y = (x+17)2 

Shift the graph of y = x2 left 17 units. 


2.Describe how the graph of y= x2 can be transformed to the graph of the given equation. 

y = (x-4)2-8 

Shift the graph of y = x2 right 4 units and then down 8 units. 


.Describe how to transform the graph of f into the graph of g. 

f(x) = x2 and g(x) = -(-x)2 

Reflect the graph of f across the y-axis and then reflect across the x-axis. 

Question 4 (Multiple Choice Worth 2 points) 

Describe how the graph of y= x2 can be transformed to the graph of the given equation. 

y = x2 + 8 

Shift the graph of y = x2 up 8 units. 


Question 5 (Essay Worth 2 points) 

Describe the transformation of the graph of f into the graph of g as either a horizontal or vertical stretch. 
f as a function of x is equal to the square root of x and g as a function of x is equal to 8 times the square root of x 

f(x) = √x, g(x) = 8√x 

vertical stretch factor 8
Plz mark as brainlest</span>
5 0
3 years ago
Read 2 more answers
Subtract the mixed numbers: 3 5/6 - 1 2/3 *
balu736 [363]
Use Keep, Change, Flip
Can I have brainliest!:)
6 0
3 years ago
You buy a game for $40, and the sales tax is $2. What percent of the game price are you paying in sales tax? Your doctor told yo
AfilCa [17]

Answer:

a) 5%

b) 24%

Step-by-step explanation:

a) You buy a game for $40, and the sales tax is $2. What percent of the game price are you paying in sales tax?

Percentage you are paying in sales tax

= Sales tax / Sale price of the game × 100

= $2/$40 × 100

= 5%

b) Your doctor told you to eat 25 grams of fiber each day. You had 6 grams of fiber for breakfast. What percent of the 25 grams of fiber have you eaten so far?

The percent of 25 grams of fiber you have eaten so far =

6 grams/25 grams × 100

= 24%

3 0
2 years ago
Which statement can be used to prove that a given parallelogram is a rectangle?
RSB [31]

The <em>correct answer</em> is:


The diagonals of the parallelogram are congruent.


Explanation:


In every parallelogram, opposite angles are congruent. This would not mean it is a rectangle.


Consecutive sides of a parallelogram are only congruent if the parallelogram is a rhombus or a square; this would not be a rectangle.


The diagonals of every parallelogram bisect each other. This would not mean it is a rectangle.


The diagonals of a rectangle bisect each other. If we know this is true about our parallelogram, this means our parallelogram is a rectangle.

7 0
3 years ago
Read 2 more answers
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