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Harrizon [31]
3 years ago
12

Randy is checking to determine if the expressions 2 x + 2 + 4 x and 2 (3 x + 1) are equivalent. When x = 3, he correctly finds t

hat both expressions have a value of 20. When x = 2, he correctly evaluates the first expression to find that 2 x + 2 + 4 x = 14.
What is the value of the second expression when x = 2, and are the two expressions equivalent?
Mathematics
2 answers:
Scilla [17]3 years ago
5 0

Answer:

14

equivalent

Step-by-step explanation:

x=2

2(3(2)+1)=

2(6+1)=

2(7)=

14

equivalent

Alchen [17]3 years ago
4 0
Answer : 14 the answer is 14
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Answer:Compose a paragraph that identifies and describes each of the three Siberian regions.

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3 years ago
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The price elasticity of demand for good X is half the price elasticity of Good Y. A 20% rise in the price of good X results in a
Keith_Richards [23]

The answer is

60% rise in quantity demanded of good x.

Explanation:

Percentage change in quantity demanded for good Y:

= (Change in Quantity ÷ Initial Quantity) × 100

= (60 units ÷ 400 units) × 100

= 15%

Percentage change in price of good Y = 10% Rise

Therefore, the price elasticity of demand for Good Y is as follows:

= Percentage change in Quantity demanded ÷ Percentage change in price

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= 1.5

Hence,

Price elasticity of demand of good x:

= 2 × price elasticity of demand of good y

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= 3

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Hence, 60% rise in quantity demanded of good x.

7 0
3 years ago
Jake and vinny are at a pizzeria .They both order a whole pizza and eat part of it.jake has 2/4 of his pizza left and vinnny has
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3/5 = 12/20
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Answer:

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Step-by-step explanation:


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3 years ago
The first number plus the second number equals 83, the first number
timama [110]

Answer:

I hope this helps

Step-by-step explanation:

So the way to handle a problem like this is to rewrite the three numbers in terms of their relationship to one of the three numbers.  Let's call the numbers x, y, and z, where x is the first number, y is the second, and z is the third.

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Since the third number is twice the second, we say that z = 2y.

Since the second number is seven less than the first, we say that y = x - 7.  We can rewrite this as x = y + 7.

Now all three can be written in terms of y.

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4y + 7 = 83

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The second number is 19.  The first is 19 + 7 or 26, and the third is 2 times 19 or 38.

A check reveals that 26 + 19 + 38 = 83.

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