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nignag [31]
3 years ago
15

A group of 11 students have a mean average spelling test score of 7. Another student had a score of 8. What is the mean score of

all twelve children?
Mathematics
1 answer:
Elena L [17]3 years ago
7 0

Answer:

7.083

Step-by-step explanation:

You might be interested in
14
kipiarov [429]

Answer:

Jumper, y = 172

Shirt, x = - 105

Step-by-step explanation:

Let :

Shirt = x

Jumper = y

5x + 4y = 163 - - (1)

3x + 2y = 29 - - - (2)

Multiply (1) by 3 and (2) by 5

15x + 12y = 489 - - - (3)

15x + 10y = 145 - - - (4)

Subtract :

12y - 10y = 489 - 145

2y = 344

y = 344 / 2

y = 172

Put y = 172 in (3)

15x + 12(172) = 489

15x + 2064 = 489

15x = 489 - 2064

15x = - 1575

x = - 105

The values ;

Jumper, y = 172

Shirt, x = - 105

We weren't supposed to obtain a negative value, kindly check if the parameters given are correct.

5 0
3 years ago
There are 3 windows in Tiana’s house that are made up of squares of colored glass. Each square of colored glass is the same size
Sati [7]
The answer is in your brain
7 0
3 years ago
Can someone please help me?
Korolek [52]
The answer is b because I took it and got it w
6 0
3 years ago
Read 2 more answers
For the function y = -2x + 20, what is the output when the input is 50.
Irina18 [472]

Answer:

y = -2(50) + 20  

y = -100 + 20 = -80

7 0
3 years ago
De dos en dos los numeros de 1.000 hasta 1.100
fgiga [73]

Step-by-step explanation:

1050 es la respuesta amigo

3 0
3 years ago
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