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Olenka [21]
3 years ago
13

Ming drew the model to represent the equation 24+12=_x(8+4). What is the missing value in Ming's equation 3 4 12 24

Mathematics
1 answer:
Anika [276]3 years ago
8 0

Answer:

3 is the missing value

Step-by-step explanation:

Given

24 + 12 = \_ * (8 + 4)

Required

Complete the blank

The model is not given; but the question can still be solved.

We have:

24 + 12 = \_ * (8 + 4)

Add 8 to 4

24 + 12 = \_ * 12

Add 24 to 12

36= \_ * 12

Divide both sides by 12

3= \_

Rewrite as:

\_  = 3

Hence, the blank will be completed with 3

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EFV and EDW are straight lines.<br>Find the value of x and of y.​
Makovka662 [10]

Answers:

x = 72

y = 83

============================================================

Explanation:

Angle VFG is 50 degrees. The angle adjacent to this is angle EFG which is 180-50 = 130 degrees.

Angle HDW is 77 degrees. The supplementary angle adjacent to this is 180-77 = 103 degrees which is angle EDH.

Pentagon EFGHD has the following five interior angles

  • E = x
  • F = 130
  • G = 170
  • H = 65
  • D = 103

Note that angles F = 130 and D = 103 were angles EFG and EDH we calculated earlier.

For any pentagon, the interior angles always add to 180(n-2) = 180(5-2) = 180*3 = 540 degrees.

This means,

E+F+G+H+D = 540

x+130+170+65+103 = 540

x+468 = 540

x = 72

---------------------------------------

Now focus your attention on triangle THS

We see that the interior angles are

  • T = y
  • H = 65
  • S = 32

The angle H is 65 degrees because it's paired with the other 65 degree angle shown. They are vertical angles.

For any triangle, the angles always add to 180

T+H+S = 180

y+65+32 = 180

y+97 = 180

y = 180-97

y = 83

7 0
2 years ago
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emmasim [6.3K]

Answer:

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Step-by-step explanation:

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4 0
2 years ago
9x - 5 - 3x - 3 = 2x - 12
Montano1993 [528]
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Answer:


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Wilma can mow a lawn in 90 minutes. Bullwinkle can mow the same lawn in 60 minutes. How long does it take for both Wilma and Bul
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Answer:

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