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aleksley [76]
3 years ago
14

The following scores represent students' test grades in Ms. Orr's science class. Test Scores 78 81 78 81 78 81 78 81 78 87 91 87

91 87 91 87 91 87 What is the median score for Ms. Orr's science class?
plsss help mee​

Mathematics
2 answers:
Liono4ka [1.6K]3 years ago
7 0

Answer:

87

Step-by-step explanation:

The median score is the score that appears in the middle of the graph and the set of numbers. 87 is the median score.

Alex17521 [72]3 years ago
3 0

Answer:

Its definitely B 84.5

I took the test

Step-by-step explanation:

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Pencils are 3 for $0.35. How much would 2 dozen pencils cost?
Helen [10]

We have that 3 pencils cost $0.35, and 2 dozen pencils are 24 pencils, then we divide by 3 to know how many 3-pencils combo we can get:

\begin{gathered} \frac{24}{3}=8 \\ \Rightarrow8\cdot(0.35)=2.8 \end{gathered}

therefore, 2 dozen pencils would cost $2.8

4 0
2 years ago
Evaluate the expression below for s= 4 and t= 7.<br> 4st? - s^2
Natalka [10]

Answer:

96

Step-by-step explanation:

if s=4 and t=7 then the expression is then 4(4*7)-4^2. Use PEMDAS. To evaluate.

4*7=28.

4^2=16

4*28=112

112-16=96.

8 0
4 years ago
What is the sum of two consecutive integers is 43?
Liula [17]
Consecutive integers are 1 apart

so they are n and n+1

the sum is adding them
the sum is 43
n+n+1=43
2n+1=43
minus 1 both sides
2n=42
divide both sides by 2
n=21
n+1=22

the integers are 21 and 22
6 0
4 years ago
In a school with 300 students 18% of the students take violin lessons and 6% of the students take clarinet lessons.
Minchanka [31]
Answer:
A) 54 violin students and 6 clarinet students
B) 36 more students
Explanation:
300 students * 0.18 (which is 18%) = 54 students
300 students * 0.06 = 18 students

54-18=36

Hope this helps :)
5 0
3 years ago
I need to know the vertex,intercepts, and range for this problem g(x)=2x^2-8x+6
Bingel [31]
y=a(x-h)^2+k\\&#10;\text{vertex}=(h,k)

g(x)=2x^2-8x+6\\&#10;g(x)=2(x^2-4x+3)\\&#10;g(x)=2(x^2-4x+4-1)\\&#10;g(x)=2(x-2)^2-2\\\text{vertex}=(2,-2)

The range of a quadratic function is:
y\in(-\infty,k]\text{ for } a0\\
So the range of g(x) is y\in[-2,\infty).

x-intercepts:
2(x-2)^2-2=0\\&#10;2(x-2)^2=2\\&#10;(x-2)^2=1\\&#10;x-2=1 \vee x-2=-1\\&#10;x=3 \vee x=1&#10;

y-intercepts:
y=2(0-2)^2-2\\&#10;y=2\cdot4-2\\&#10;y=6



8 0
3 years ago
Read 2 more answers
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