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Romashka [77]
3 years ago
6

Is the open sentence 3z = 2z +5 true or false when z=5?

Mathematics
1 answer:
11111nata11111 [884]3 years ago
8 0
If 3z=2z+5 and z=5, then you’d just plug the 5 in.

3(5)=2(5)+5 —> 15=10+5 —> 15=15

This statement is TRUE because 15 does equal 15.

I hope this helps. :)
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The sum of two numbers is 14. the larger number minus three times the lesser number -2. what is the lesser number?
Tatiana [17]
Let's take the 2 numbers are a and b.
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3 years ago
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3 years ago
Question 3,4&5 Cindy bought a car for $21,330. A few years later she sold the car for $19,700.find the percent of change in
san4es73 [151]

The change in value was 8% which amounts to $1630

Further explanation:

The change in value is calculated by using the initial price and selling price of the car.

Given

Purchase Price = P = $21330

Selling Price = S = $19700

As the selling price is less than the purchase price, Cindy had loss.

Loss=L= Cost\ price-selling\ price\\=21330-19700\\=\$1630

Percentage of loss will be calculated as:

Percent\ loss=\frac{1630}{21330}*100\\=8\%

The change in value was 8% which amounts to $1630

Keywords: Loss, Percentage loss

Learn more about profit and loss at:

  • brainly.com/question/1563227
  • brainly.com/question/1560475

#LearnwithBrainly

6 0
3 years ago
Please help me if you know how to do it
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14. y=x^2 + 3

15. substitute the numbers from the table into each equation

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