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prisoha [69]
3 years ago
11

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
The two spinners below are spun. Find the probability of spinning a 4 and a C.
r-ruslan [8.4K]

Step-by-step explanation:

S = { 1, 2, 3, 4, 5, 6 7, 8 }

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Therefore, the probability of spinning a 4 is 1 / 8.

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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.

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The distance between the given building on the map.

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We have,

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

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

1 mile in real life = \dfrac{3}{4\times 80}\ in on the map.

60 mile in real life = \dfrac{3\times 60}{4\times 80}\ in on the map.

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Therefore, the buildings are \dfrac{9}{16}\ in apart on the map.

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sleet_krkn [62]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
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Step-by-step explanation:

56

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