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Romashka [77]
3 years ago
14

Find the value of x if AB || CD

Mathematics
1 answer:
sergiy2304 [10]3 years ago
7 0

(180 - 55) + (180 - 25) = 280


Answer: 280°

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Tavon has a $50 gift card that loses $2 for each 30-day period it is not used. He also has a $40 gift card that loses $1.50 for
svp [43]

Answer:

20

Step-by-step explanation:

The first equation is 50 - 2x (because you start with $50 and subtract 2 for each 30 day period)

 

The second equation is 40-1.5x

 

Set them equal to each other:  50 - 2x = 40 - 1.5x

Solve for x:

 

50 - 2x = 40 - 1.5 x

    +2x         +2x

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

 

50 = 40 + 0.5 x

-40   -40

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

10 = 0.5 x

20 = x

 

So there will be 20 30-day periods until the cards will be equal in value.

 

Check:  After 20 periods, 50 - 2(20) = $10 left

 

40 - 1.5(20) = also $10 left

6 0
3 years ago
What are the steps to finding the line of symmetry from an equation?
cestrela7 [59]

Answer:

Turn it into y=mx+b form (slope-intercept form)

Step-by-step explanation:

3 0
3 years ago
If EC bisects Find BED
Serga [27]
If <span>EC </span>bisects ∠BED, then m∠BEC = m∠DEC
11x + 2 = 8x + 20
11x - 8x = 20 - 2
3x = 18
x = 6

 m∠BED = 2 * m∠BEC
               = 2(11x + 2)
               = 2(11*6 + 2)
               = 2(66 + 2)
               = 2 * 68
               = 136°
7 0
4 years ago
Which property is shown ?
Nady [450]

Answer:

third choice

Step-by-step explanation:

commutative property of addition

5 0
4 years ago
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How do I find the answer. I need to know
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Volume is LxWxH.....so mulyiply everything
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3 years ago
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