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dimulka [17.4K]
3 years ago
15

Help me for 1????????

Mathematics
2 answers:
Vadim26 [7]3 years ago
6 0
To find the mean/data of a set of numbers, add all of the numbers together then divide by the number of numbers there are. 

85+93+80+89+92+93+94+91+79 = 796
796/9 = 88.4444444 which can be rounded down to 88.4

The answer is 88.4. 

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)
kvasek [131]3 years ago
5 0
The average score for the entire year is 88.44444, so by rounding down the answer is 88%
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Marsha earn $25 per hour up to 36 hours; after this,she is paid double time. In one particular week she earned $1550.00 .how man
mel-nik [20]

Answer: Marta worked 13 hours overtime.

Step-by-step explanation:

1): You do 25 x 36 to get the amount of money she can make before she starts to make double.

36 x 25 = 900

2): Minus $900 from $1550

$1550 - $900 = $650

3): Divide $650 by $50

$650 / $50 = 13 hours worked overtime

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Alex787 [66]

40×4×4=640

b=20 h=4

using formula:

1/2×base×height

1/2×20×4=40

its says scale by factor 4:

b=80 h=16

using formula:

1/2×base×height

1/2×80×16=640

answer------>>>>640cm^2

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3 years ago
Find the value of x.
kipiarov [429]
Are there multiple choice options??
8 0
2 years ago
pls help . Select all the pairs that could be reasonable approximations for the diameter and circumference of a circle. Explain
Grace [21]
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4 0
2 years ago
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Select the correct answer from each drop-down menu. y = x2 + 2x − 1 y − 3x = 5 The pair of points representing the solution set
katen-ka-za [31]

ANSWER

(-2,-1)

(3,14)

EXPLANATION

The given system is

y =  {x}^{2}  + 2x - 1

y - 3x = 5

or

y = 3x + 5

Equate both of them:

{x}^{2}  + 2x - 1 = 3x + 5

This implies that,

{x}^{2}   - x - 6 = 0

(x - 3)(x + 2) = 0

x=-2 or x=3

When x=-2, y=y=3(-2)+5=-1

(-2,-1) is a solution.

When x=3 , y=3(3)+5=14

(3,14) is also a solution.

7 0
3 years ago
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