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Nana76 [90]
3 years ago
5

Question 3

Mathematics
1 answer:
avanturin [10]3 years ago
4 0

Answer:

I think 1

I think 2

I think 3

I think 4

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How do you solve #13
joja [24]
I have no idea sorry i figure it out brb
6 0
3 years ago
HELP PLSSS THIS IS HARD SOMEONE
tia_tia [17]

Answer:

x,y - x,y-4

Step-by-step explanation:

x coordinates of a and b remain same but their y coordinates become -4

3 0
3 years ago
Read 2 more answers
-7h+3(4-6h)=127 is h= 25?
GREYUIT [131]

Answer:

No, h = (-23)/5

Step-by-step explanation:

Solve for h:

3 (4 - 6 h) - 7 h = 127

3 (4 - 6 h) = 12 - 18 h:

12 - 18 h - 7 h = 127

-18 h - 7 h = -25 h:

-25 h + 12 = 127

Subtract 12 from both sides:

(12 - 12) - 25 h = 127 - 12

12 - 12 = 0:

-25 h = 127 - 12

127 - 12 = 115:

-25 h = 115

Divide both sides of -25 h = 115 by -25:

(-25 h)/(-25) = 115/(-25)

(-25)/(-25) = 1:

h = 115/(-25)

The gcd of 115 and -25 is 5, so 115/(-25) = (5×23)/(5 (-5)) = 5/5×23/(-5) = 23/(-5):

h = 23/(-5)

Multiply numerator and denominator of 23/(-5) by -1:

Answer:  h = (-23)/5

4 0
2 years ago
Can someone please help me with this problem please?
Svetlanka [38]

Answer:

6.86

Step-by-step explanation:

ask if you dont understand

4 0
2 years ago
A motorboat takes 3 hours to travel 108 kilometers going upstream. The return trip takes 2 hours going
IRISSAK [1]

Answer:

  • 45 km/h and 9 km/h

Step-by-step explanation:

Let the rate of boat in still water be b and the speed of the current be c

  • Speed downstream = b + c
  • Speed upstream = b - c

<u>We got equations for time:</u>

  • 108/(b - c) = 3 ⇒ b - c = 36
  • 108/(b + c) = 2 ⇒ b + c = 54

<u>Add up the equations:</u>

  • b - c + b + c = 36 + 54
  • 2b = 90
  • b = 45 km/h

<u>Then finding the values of c</u>

  • c = 45 - 36 = 9 km/h
6 0
3 years ago
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