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3 years ago

Please help :) If you know anything about combining equations can you help me :)

Mathematics

2 answers:

natka813 [3]3 years ago

7 0

Answer:

-8y-5x=-5

Step-by-step explanation:

Tocombine equations add the two sides together.

(4x-4y)+(-9x-4y)=-2+(-3)

4x-4y-9x-4y= -5

-8y-5x=-5

julsineya [31]3 years ago

5 0

Answer:

-5x - 8y = -5

Step-by-step explanation:

Whenever we two equations, we are essentially just adding the left sides up and then the right sides up. Here, let's write these into one whole big equation:

(4x - 4y) + (-9x - 4y) = -2 + (-3)

Taking the parentheses out, we have:

4x - 4y - 9x - 4y = -2 - 3

Combine like terms:

4x - 9x - 4y - 4y = -5

-5x - 8y = -5

Hope this helps!

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago

A map uses a scale of 3/4 in = 80 miles. If two buildings are 60 miles apart in real life, how far apart would they be drawn on

Alla [95]

Given:

The scale of a map is $\dfrac{3}{4}\ in=80\ miles$ .

The distance between two buildings is 60 miles.

To find:

The distance between the given building on the map.

Solution:

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$\dfrac{3}{4}\ in=80\ miles$

It means, 80 miles in real life = $\dfrac{3}{4}\ in$ on the map.

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Step-by-step explanation:

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