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Romashka [77]
3 years ago
13

Example of open equation

Mathematics
1 answer:
maw [93]3 years ago
6 0
5x4 
an equation is 2 or more numbers multiplied,divided or etc; by eachother
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What is the equation of the line?
svetlana [45]

Answer:

y = -7

Step-by-step explanation:

This line is a horizontal line [HOY] - horizontal, 0 slope, and the equation starts with y = ___ , since it crosses at -7, then the line is y = -7

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Two-thirds of a number added to itself is 20. What is the number?
vivado [14]

Answer:

12

Step-by-step explanation:

2/3 x + x = 20

2/3 x + 3/3x = 20

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x = 12

check: 2/3 x 12 + 12 = 8 + 12 = 20

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Brianna solved a two-step equation, but she made a mistake along the way.
Makovka662 [10]

The appropriate choice is ...

... On Line 3, Brianna should have divided by 0.1 instead of subtracting 0.1.

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putting her essentially back where she started—with a 2-step equation.

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3 years ago
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A shirt originally cost $39.38, but it is on sale for $31.50. What is the percentage decrease of the price of the shirt? If nece
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39.38-31.50=7.88

2. divide the difference by the original number

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3. multiply this number by 100

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