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const2013 [10]
3 years ago
11

What is a equivalent ratio for 40:28=_:7

Mathematics
1 answer:
forsale [732]3 years ago
3 0

40:28 is equivalent to 10:7

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I need help with this proof
Maksim231197 [3]

Answer:

See explanation

Step-by-step explanation:

Consider two triangles ABF and EDF. These triangles are two right triangles, because angles B and D are right anges.

In these triangles,

  • ∠ABF ≅ ∠EDF - as two right angles;
  • BF ≅ FE - given;
  • ∠AFB ≅ ∠EFD - as vertical angles when two lines AD and BE itersect.

By ASA postulate (or HA postulate) these triangles are congruent, so

ΔABF ≅ ΔEDF

Congruent triangles have congruent corresponding parts, so

FA ≅ EF

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3 years ago
Which two numbers doesStartRoot 61 EndRoot lie between on a number line?
denpristay [2]

Answer:

Between 7 and 8

Step-by-step explanation:

6^2 = 36

7^2 = 49

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9^2 = 81

since 61 is between 7^2 and 8^2, √61 is between 7 and 8

7 0
2 years ago
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I need help finding x!<br><br> Please show work for both!
Alenkinab [10]
1. Answer x=-5
You would subtract 25 from each side of the equal sign, taking 25 away from 40 and 25 away from 25, isolating the x. So you would then have -3x=15. You would then divide each side by -3, and getting x=-5
4 0
3 years ago
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Solve X + 5 + 6x = 180. What are the steps?
Elenna [48]

Answer:

x=25

Step-by-step explanation:

x+5+6x=180

7x+5=180

7x=175

x=25

3 0
2 years ago
What is the slope????
RUDIKE [14]

Answer:

1

Step-by-step explanation:

Rise/run

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