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vitfil [10]
4 years ago
15

Three times the difference of a number and 2

Mathematics
1 answer:
Anit [1.1K]4 years ago
8 0

Answer:

6

Step-by-step explanation:

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What is the solution to the system of equations below? y = one-half x minus 4 and y = negative 2 x minus 9 (–2, –5) (–2, –3) (2,
Maurinko [17]

We have been given a system of equations y=\frac{1}{2}x-4 and y=-2x-9. We are asked to find the solution of our given system of equations.

To solve our system of equations, we will equate both equations as:

\frac{1}{2}x-4=-2x-9

\frac{1}{2}x-4+4=-2x-9+4

\frac{1}{2}x=-2x-5

\frac{1}{2}x+2x=-2x+2x-5

\frac{1}{2}x+\frac{4}{2}x=-5

\frac{1+4}{2}x=-5

\frac{5}{2}x=-5

\frac{2}{5}\cdot \frac{5}{2}x=-5\cdot \frac{2}{5}

x=-2

Upon substituting x=-2 in equation y=-2x-9, we will get:

y=-2(-2)-9

y=4-9

y=-5

Therefore, the solution of our given system of equations would be (-2,-5) and option A is the correct choice.

7 0
3 years ago
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Hey guys can yall help me with this math pleaseeeee
yanalaym [24]

Answer:

The answer is 1, -1

Step-by-step explanation:

Because I said so.

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Does anyone know what is the measure for these need help on this
sasho [114]
4. 66
5. 48
6. 60
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3 years ago
Please help on 19 this needs to be finished tonight and I’m desperate I need help really bad my mom doesn’t understand this and
Lapatulllka [165]

Step-by-step explanation:

(4 {x }^{2}   + 3 {y}^{2} ) {}^{0} \\ rule \: of \: zero =  {x}^{0}  = 1 \\ answer = 1

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3 years ago
How to write 600,000+80,000+10 in standard form please I have trouble in math
Lapatulllka [165]
The answer to 600,000+80,000+10 in standard form is simple. It's 680,010. Just do the addition if you don't understand how to turn a math problem into standard form
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