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densk [106]
3 years ago
8

Part 1: If we double each side of the second equation, 2x+y=8 we have 4x+2y=16. Explain why the same pair that is the solution t

o the system is also a solution to this new equation. If needed, you can support your explanation with hanger diagrams, or by inventing a situation that the equations represent.
Part 2: If we add the two equations in the original system, we have 6x+7y=32. Explain why the same (x, y) pair is also a solution to this equation
PLEASE ANSWER FAST
Mathematics
1 answer:
aleksley [76]3 years ago
8 0

Answer:

Step-by-step explanation:

its the same because when you simplify it the equation is the same

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8) There are six boys and seven girls in a
kondaur [170]

Answer:

i say dependent. i may be wrong

7/26

Step-by-step explanation:

6/13 times 7/12 which is 42/156 which is 14/52 which is also 7/26

7 0
3 years ago
What is the surface area of the cylinder with height 7 in and radius 3 in? Round your
meriva

Answer:

188.495

Step-by-step explanation:

Given that,

h=7

r=3

Surface area of a cylinder = 2πr(h + r)

=2π×3(7+3)

=18.8495559215 (10)

=188.495

8 0
2 years ago
A hiker is descending 152 m every 8 minutes what will be hikers change in elevation in half an hour.write as an integer
victus00 [196]

Solving this problem is just pretty straight forward. All we have to do is to use the concept of ratio and proportion.

First, let us say that the change in elevation in half an hour (30 minutes) takes the value of variable x.

From the given, we know that the ratio of height and time is:

152 m : 8 minutes

And the next ratio is:

x : 30 minutes

To solve for the value of x, we equate the two:

152 m : 8 minutes = x : 30 minutes

We know that the symbol of ratio which is “:” also means division, therefore:

152 m / 8 minutes = x / 30 minutes

x = 152 m * 30 minutes / 8 minutes

x = 570 m

 

Therefore the change in elevation after half an hour is 570 meters.

8 0
3 years ago
If you are adding a whole to 2/5, how should you write it?
puteri [66]
The answer to your question is (C)
1 by itself added to 2/5 would go on the side and look like: 1 2/5
So (C)
8 0
3 years ago
Read 2 more answers
.I want a way to solve such a problem​
Ray Of Light [21]

Answer:

Step-by-step explanation:

The answer is 65. You just add the number of computer towers that fall into that category. So your sum would look like this:

Divisor: 5+ 12 + 21 + 15 + 12 = 65

The question does not ask you to do any more than figure out what you will be dividing by. Thank goodness it does not ask what you will be dividing into which is a whole lot more complicated problem.

7 0
2 years ago
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