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k0ka [10]
3 years ago
8

Which is the best first step when solving the following system of equations? y= 7x+3 y=9x

Mathematics
1 answer:
Liula [17]3 years ago
4 0
I am not sure if it is the best but heres one way to do it 

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Explain why the following answer is not correct: 1,000/5=2,000
Tatiana [17]
Well, 1000/5 would be smaller than 2000 not bigger. You are dividing into smaller pieces not multiplying into bigger ones.
7 0
3 years ago
How do i find the area for number 4?
ankoles [38]
<h3>Answer:  41 cm^2</h3>

Explanation:

Form a horizontal line as shown below (see attached image). This forms 2 separate smaller rectangles

  • The bottom rectangle has area of 4*8 = 32 cm^2
  • The top rectangle has area of 3*3 = 9 cm^2

The total area is therefore 32+9 = 41 cm^2

You can say "square cm" or "sq cm" in place of the "cm^2".

5 0
3 years ago
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Solve.<br> - 5 - 3 1 / 2 = 0<br> 21<br> Done
patriot [66]
This equation does not have an answer
5 0
3 years ago
Estimate the measure of angle 1
fenix001 [56]

Answer:

most likely (c) 140 degrees

8 0
3 years ago
the volume of a solid triangular prism is 726 cubic centimeters. its height is 12 centimeters and its bases are congruent right
aivan3 [116]

9514 1404 393

Answer:

  11 cm

Step-by-step explanation:

The volume of the prism is given by the formula ...

  V = Bh

where B is the area of the triangular base, and h is the height.

Filling in the given information, we find the area of the triangular base to be ...

  726 cm³ = B(12 cm)

  B = 726 cm³/(12 cm) = 60.5 cm²

The area of an isosceles right triangle is half the area of a square with the same side lengths:

  B = 1/2s²

  60.5 = 1/2s²

  s = √(2(60.5)) = √121 = 11

The length of each of the equal sides of the base is 11 cm.

4 0
3 years ago
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