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liubo4ka [24]
3 years ago
14

Which of these steps will eliminate a variable in this system?

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
3 0
C. multiply the second equation by two. Then add the equations
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How many perpendicular lines must be drawn in a triangle to prove the Law of Sines?..is it 2, 1,0, or 3..Explain
Butoxors [25]

Answer:

We show 1 to distinguish a vertex, but with laws of supplementary the answer is 2.

Step-by-step explanation:

7 0
3 years ago
Solve the following equation for x: 9x - 2<br> = 11x + 5
Nady [450]

Answer:

x= \frac{-7}{2}

Step-by-step explanation:

9x-2=11x+5

-9x       -9x

-2=2x+5

-5       -5

-7=2x

\frac{-7}{2} = \frac{2x}{2}

\frac{-7}{2}=x

8 0
3 years ago
Read 2 more answers
PLEASE HELP...AGAIN this is due tomorrow and it's late at noon..
dimaraw [331]
What do you need help with and what subject
4 0
3 years ago
Javier is considering two lawn care services. Premier Landscaping charges $15.00 for travel to the job site and $55.00 per hour
Wittaler [7]

Answer:

Time in which both companies charge same cost = 1.5 hour

Step-by-step explanation:

Given:

                                                        Fixed    Variable

Premier Landscaping charges          $15        $55

Ace Landscaping charges                               $65

Find:

Time in which both companies charge same cost:

Computation:

Assume in X time both companies charge same cost:

So,

Premier Landscaping total cost = Ace Landscaping total cost

⇒ $15 + $55(Time taken) = $65 (Time taken)

⇒ $15 = $65 (Time taken) - $55(Time taken)

⇒ $15 = $10 (Time taken)

⇒ Time taken = 1.5 hour

Time in which both companies charge same cost = 1.5 hour

6 0
3 years ago
Given f(x) = 10 - 2x, find f(7).
Dmitry_Shevchenko [17]

Answer:

-4

Step-by-step explanation:

f(x) = 10 - 2x,

Let x= 7

f(7) = 10 2(7)

     = 10-14

      = -4

7 0
3 years ago
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