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tatuchka [14]
3 years ago
14

An instructor has graded 23 exam papers submitted by students in a class of 24 students, and the average so far is 67. (The maxi

mum possible score is 100.) How high would the score on the last paper have to be to raise the class average by 1 point? By 2 points?
Mathematics
1 answer:
Ne4ueva [31]3 years ago
6 0

Answer:

(oo) ========8

Step-by-step explanation:

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Which inequality models this problem?
lana [24]

Answer:

C

Step-by-step explanation:

$6500 is a one time purchase so there is no variable attached.

$550 and $900 per week is reoccurring so there will be a variable attached.

Since $900 is what she is making each week, this will be separate from her costs (can eliminate D).

To make a profit, her amount earned will need to be greater than her expenses, so the answer is C.

8 0
3 years ago
What does k and y equal?
Kaylis [27]
X and y vary directily means

y=kx

72=3k
divide both sides by 3
24=k

k=24
y=72
8 0
3 years ago
The plot shown to the right displays the number of books read last month by nine students. What is the median number of books re
Flauer [41]
1 is the median

0000(1)2234

The median is the middle number
4 0
3 years ago
The store ratio is 4 apples : 3 oranges. If the store has
horsena [70]

Answer:

28

Step-by-step explanation:

21 divided by 3 is 7, take that 7 and multiply it by the 4. Hope this helps!

4 0
2 years ago
You are a running a concession stand selling hot dogs and sodas each hot dog costs .75 cents and each soda costs $1.25. You sold
tatiyna
<span>Each hot dog costs $ 1.50 and each soda costs $ .50. You made a total of $ 78.50. You sold a total of 87 hot dogs and sodas combined. You must report the number of hot dogs and soda's sold. How many hot dogs and soda's were sold? 

Quantity Equation: h + s = 87
Value Equation:: 1.5h+0.5s=78.50

Multiply thru the Quantity Equation by 15
Multiply thru the Value Equation by 10.

15h + 15s = 15*87
15h + 5s = 785</span>Subtract and solve for "s":<span>10s = 520
</span>s = 52 (# of soda's sold)
<span>
Solve for h:
h + s = 87
h + 52 = 87
h = 35 (# of hot dog's sold)</span>
6 0
3 years ago
Read 2 more answers
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