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aleksklad [387]
2 years ago
15

9. Evaluate:

Mathematics
2 answers:
USPshnik [31]2 years ago
8 0

Answer:

Ur answer is :-

<h2>a). 60cm</h2><h2>b). 9 rs.</h2>

mrs_skeptik [129]2 years ago
7 0

Answer:

Step-by-step explanation:

a) 12\dfrac{1}{2}=\dfrac{25}{2}\\\\\dfrac{25}{2*100}*480= \dfrac{1}{2*4}*480 = 60 \ cm\\\\b) \dfrac{3}{4*100}*1200= 3*3 = 9 \ Rs.

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How many solutions does the system have? \begin{cases} 3x+y=8 \\\\ 2x+2y=8 \end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ 3x+y=8 2x+2y=8 ​ Choose 1
ELEN [110]

Answer:

This system has one solution (x=2 and y=2), then the answer is A.

Step-by-step explanation:

The system of equations is:

3x+y=8 (1)

2x+2y=8 (2)

Let's multiply the first equation by 2 and subtract it to the second equation  

6x-2x+2y-2y=16-8

4x=8  

x=2

Using this value in (1) we can find y.

3(2)+y=8

6+y=8

y=2

Therefore, this system has one solution (x=2 and y=2), the answer is A.

I hope it helps you!

3 0
3 years ago
Maya wants to buy a piano. The piano measures 19/4 feet long. She has a space 5 feet long for the piano in her house. Does she h
Sophie [7]
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8 0
3 years ago
Help asap! Brainliest + a lot of points! <br><br> Answer and explain!
Alborosie

The three important about the box and whisker plot is that it shows median, LIQ (Low interquartile), UIQ (Upper Interquartile), the lowest and highest number

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7 0
2 years ago
How can I solve this does anyone knows?
Ipatiy [6.2K]
A. C = 17h + 15
b. 83 = 17h + 15 
    -15           - 15  subtract 15 from both sides 
    68 = 17h
    ------------
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c. C = 20x
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7 0
3 years ago
Read 2 more answers
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