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docker41 [41]
3 years ago
12

Which of the following represent the same ratio?

Mathematics
1 answer:
eduard3 years ago
5 0
Answer:2/3 and 2:3
Explanation
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Y= -1 <br> -2x-y=3<br> Solve by substitution
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Which answer describes the simpler problems that could be used to solve this story problem?
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3 years ago
6x+2y=<br> 6x+2y=<br> \,\,16<br> 16<br> 2x-2y=<br> 2x−2y=<br> \,\,32<br> 32
Ivanshal [37]

Answer:

x = 6, y = -8

Step-by-step explanation:

First we take the equations side by side and put them like this:

 6x + 2y = 16

+ 2x - 2y = 32

8x = 48

Then solve for x.

x = 6

Then insert x back into either equation

2(5) - 2y = 32

10 - 2y = 32

solve for y,

y = -10

3 0
3 years ago
Sunita creates a scale model of an aeroplane.
Varvara68 [4.7K]

Answer:

The wingspan of the real aero plane is 65.6 cm

Step-by-step explanation:

Here, we are to calculate what the wingspan of the real aero plane is given the length of the model and the comparison of the model to the real.

This can be best solved using a ratio approach.

What we have is that the model measures to the original at a ratio of 5:8

Hence at all times, the ratio we have must be 5 to 8

Now, we have a model length of 41cm and we want to calculate what the real span will be

Let the real

length be x cm

Thus mathematically;

5:8 = 41:x

5/8 = 41/x

5* x = 8 * 41

5x = 328

x = 328/5

x = 65.6 cm

6 0
4 years ago
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