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Rufina [12.5K]
4 years ago
6

Match each equation with the number that makes it true.

Mathematics
2 answers:
nekit [7.7K]4 years ago
8 0

Answer:

11.)  n + 7 = 18

31.)  n - 9 = 22

7.)  5 · m = 35

50.)  m/5= 10

15.)  18 + s = 33

17.) 40 - s = 23

3.)  27 = 9 · s

6.) 18/s  = 3

5.) m + m + 12 = 22

2.) m + 14 = 18 - m

Step-by-step explanation:

Burka [1]4 years ago
3 0
Number 1 is 15 number 2 is 9x3=27 and number 3 is 15 and number 4 is 5x7=35 number number 6 is 5 number 7 is 11 and that is about all i know hope this helps
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An airplane took 2 hours to fly 600 km against a head wind. The retrun trip with the wind took 1 and two thirds hours. Find the
Agata [3.3K]

Answer:

The speed of plane in still air is 330 kmph  

Step-by-step explanation:

Given as :

The distance cover against the wind = 600 km

The time taken against the wind = 2 hours

The distance cover with the wind = 600 km

The time taken with the wind =  ( 1 + \frac{2}{3} ) hours

                                                =  \frac{5}{3} hours

Let The speed against the wind  = x - y  kmph

The speed with the wind = x + y  kmph

where x is the speed of plane in still air

And y is the speed of wind

So , Speed = \dfrac{\texrm Distance}{\texrm Time}

Or, x - y = \frac{600}{2} = 300         ......A

And x + y = \frac{600}{\frac{5}{3} }

Or , x + y = 360                                                 .......B

From eq A and B

( x + y ) - ( x - y ) = 360 - 300

Or, 2 y = 60

∴  y = \frac{60}{2} = 30  kmph

And x = 360 - 30 = 330  kmph

Hence The speed of plane in still air is 330 kmph   Answer

3 0
3 years ago
Can you please help me on 2 and 3?
dexar [7]
Cant see it its cut off
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3 years ago
Hey, I don't understand this question can someone help me.<br><br> y=0.8x-11 y=0.2x+19
Crazy boy [7]
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7 0
3 years ago
Help me with math pls !
Simora [160]

Answer:

n+1

Step-by-step explanation:

justt do ur calculation

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3 years ago
10 pts to answer this!
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Answer:

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Step-by-step explanation:

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