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agasfer [191]
3 years ago
10

select true or false. the expression 3x − 4(2x − 5) is equivalent to the expression 20 − 5x. true false

Mathematics
2 answers:
tamaranim1 [39]3 years ago
5 0
The expansion of the expression 3x - 4(2x - 5) is as follows:
3x -8x + 20 = 20 - 5x.
Therefore the statement is true.
nikdorinn [45]3 years ago
4 0

Answer:

true

Step-by-step explanation:

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igor_vitrenko [27]
-3t < -78 
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The diameter of a flour tortilla is 12 inches. What is the area to the nearest hundredth?
dimaraw [331]

3.14*d

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After Lois picks a value for b, Clark must solve the equation 2x + 7 - x = 4x + 2b – 3x - 3b.
puteri [66]

The value of b Lois gave to Clark to satisfy the given equation is -7.

The given parameters;

2x + 7 - x = 4x + 2b – 3x - 3b

To obtain the value of b, simplify the equation as follows;

2x + 7 - x = 4x + 2b – 3x - 3b

<em />

<em>collect similar terms together</em>

<em />

(2x - x) + 7 = (4x - 3x) + (2b - 3b)

x + 7 = x - b

(x - x) + 7 = -b

0 + 7 = -b

7 = -b

-7 = b

b = -7

Thus, the value of b Lois gave to Clark to satisfy the given equation is -7.

Learn more about simplification of algebraic expression here: brainly.com/question/8956927

5 0
3 years ago
Using this formula, how many sides does a polygon have if the sum of the interior angles is 1,260°? Round to the nearest whole n
nikdorinn [45]

Answer:

9 Sides

Step-by-step explanation:

According to the Question,

  • Given That, The sum of the interior angles(s), in an n-sided polygon can be determined using the formula s=180(n−2), where n is the number of sides

Therefore, The sides do a polygon have if the sum of the interior angles is 1,260°.

Put The Values in Formula, we get

1260=180(n−2)

n-2 = 7

n=9 (9 Sides)  

6 0
3 years ago
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