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Alona [7]
3 years ago
13

if the mean score of 12 students in maths is 5 and the mean score of another 10 students is 6. Calculate the average score of 22

students to the nearest whole number​
Mathematics
2 answers:
Kaylis [27]3 years ago
7 0
The answer is 5.(5+6) divided by 2=5.5
Alexandra [31]3 years ago
7 0

Answer:

the nearest whole number​: 5

Step-by-step explanation:

(12 x 5) + (10 x 6) = 120

120 / 22 = 5.45

since the first digit of the fractional part is 4, that's less than 5.

So the nearest whole number is 5

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Which graph correctly solves the system of equations below? y = −x2 + x + 7 y = x2 + 3x + 7
antiseptic1488 [7]

Answer:

(-1.703, 2.396)

(1.37, 6.493)

Step-by-step explanation:

We can easily solve this question by using a plotting tool or any graphing calculator,

The solution to the system of equation is given by the intersection points between the graphs of

y1 = −x^2 + x + 7

y2 = x^2 + 3x + 7

Please, see attached picture below.

The solutions are:

(-1.703, 2.396)

(1.37, 6.493)

5 0
3 years ago
Convert 12five to decimal form by expanding in powers and using the calculator shortcut.
34kurt

12•12•12•12•12

Idk what I means but did it help a little?

7 0
3 years ago
How do you simplify 8- (-2)
DochEvi [55]

Answer:

8-(-2)

minus,minus means magiging plus so,

8+2=10

Step-by-step explanation:

Mark me please

4 0
3 years ago
Four expressions are shown bellow
Irina18 [472]

Answer:

A

2(4x + 2)

and

D

8x + 4

Step-by-step explanation:

Because if you simplify the equation theb you get 8x+4 therefore D is equivalent to it. A is also equal to D which make it equivalent to the equation as well.

3 0
3 years ago
Read 2 more answers
PLZZZ HELP and also give an explanation
lesantik [10]

1444km(distance) divided by 110km(scale) = 13.13cm.

Hope this helped!

4 0
3 years ago
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