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iragen [17]
3 years ago
11

Someone please help me with this equation

Mathematics
2 answers:
Nataly [62]3 years ago
5 0

150-x-2x=120+2x

     +x             +x

    150-2x=120+3x

          +2x        +2x

         150=120+5x

        -120 -120

          30=5x

          /5   /5

            6=x    

pychu [463]3 years ago
4 0

Answer:

x=6

Step-by-step

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Each morning a deli worker has to make several pies and a bucket of potatoes. On Monday, it took the worker 2 hours to make the
Gala2k [10]

The quantities include hours and minutes.

The the known and unknown quantities can be used to write an equation and this gives 60 minutes.

<h3>How to explain the information?</h3>

It should be noted that there are two different units of time measurement and these are hours and minutes. In this case, once can either convert the hours given to minutes or vice versa.

Therefore,

2 hours = 120 minutes, and

2.5 hours = 150 minutes.

If x represents the number of potatoes in the bucket, then the time to peel all of the potatoes on the first day will be 1.5x.

The quantity added to the 120 minutes spent making pies is the total elapsed time for the first day's work. The first days time is equal to the second day. This will be:

120 + 1.5x = 150 + x

1.5x - x = 150 - 120

0.5x = 30

x = 30/0.5 = 60

The time taken is 60 minutes.

Learn more about quantities on:

brainly.com/question/26044328

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6 0
1 year ago
Christina made 84% of all shots attempted and mallory made 7/8 of all shots who made more
Ghella [55]

Hey!

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~Turn both into decimals.

84% = 0.84

7/8 = 0.875

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Hence, Mallory made more shots then Christina!

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Hope This Helped! Good Luck!

6 0
4 years ago
Which of the following graphs shows a parabola with a vertex of (1,-9) and solutions of (-2,0) and (4,0)?
Mariulka [41]

Answer:

Hello,

Step-by-step explanation:

Roots are -2 and 4

y=k*(x+2)(x-4)

Vertex = (1,-9) is a point of the parabola

-9=k*(1+2)(1-4) ==> k=1

Equation of the parabola is y=(x+2)(x-4)

But you don' t have given the graphs !!!!

3 0
3 years ago
Which one of the triangles shown is the image of the other triangle after dilation? What are the coordinates of the center of di
Vesnalui [34]
Need a picture! Then I will be happy to help :
5 0
3 years ago
4. The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. The microphone itself is placed
elixir [45]
Assume the parabola is placed on a graph where the x-axis is the top of the dish.
The vertex is then at (0,-30)  The x-intercepts or zeros are at (-30,0) and (30,0)

The equation of such parabola would be:
y = a(x+30)(x-30)
Plug in vertex to find value of 'a'
-30 = a(0+30)(0-30) \\  \\ a = \frac{-30}{(-30)(30)} = \frac{1}{30}

Now find the focus given that p = \frac{1}{4a}
p = \frac{1}{4(1/30)} = \frac{30}{4} = 7.5

Answer: the microphone should be placed 7.5 inches from vertex.
8 0
4 years ago
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