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Shtirlitz [24]
3 years ago
13

Solve the system of equation by adding or subtracting. x+4y=4 3x-4y=-4

Mathematics
2 answers:
Alecsey [184]3 years ago
8 0
X=<span><span><span>43</span>y</span>+<span><span>−4</span><span>3 hope this helped</span></span></span>
pychu [463]3 years ago
4 0
When solving for X
~Add -4 to both sides
X+4Y=4
-4. -4
---------------
X=-4y+4

~add 4 to both sides
3x-4y+4=-4+4
3x=4y-4
~divide both sides by three
3x=4y-4
--- ------
3. 3
X=3\4+ -4\3

When solving for Y
~add -x to both sides
x+4y+-x=4+-x
4y=-x+4
~divide both sides by 4
4yy=-x+4
----- ------
4. 4
Y=-1\4x+1

3x-4y=-4
~add -3x to both sides
3x-4yy+-3x=-4+-3x
-4y=-3x-4
----- -------
4. 4
Y=3\4x+1
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please help with this it would mean a lot (you don't have to give the answer just help me understand it.) thanks
lord [1]
<span>2.065 IS THE ANSWER!!</span>
4 0
3 years ago
If a scale distance of 3.5 inches on a map represent an actual distance of 175 km what actual distance does a scale distance of
gavmur [86]

Considering the definition of map and scale, an actual distance of 269.59 km represent a scale distance of 5.7 inches .

<h3>Definition of map and scale</h3>

A map is a representation of a place, at a size smaller than the real size.

The scale of a cartographic representation is the relationship of similarity between the real dimensions of the geographical space represented and those of its image on the map. That is, the scale is defined as the proportionality relationship that exists between a distance measured on the ground and its corresponding measurement on the map.

One way to represent the scale is by a fraction, which indicates the proportion between the distance on a map and its corresponding distance in reality:

Scale=\frac{distance on the map}{distance in reality}

<h3>Actual distance in this case</h3>

In this case, you know that a scale distance of 3.5 inches on a map represent an actual distance of 175 km.

To know the real distance that represents a scale distance of 5.7 inches, as the scale ratio is the same as in the previous case, it is expressed:

\frac{3.7 inches}{175 km}=\frac{5.7 inches}{distance in reality}

Solving:

\frac{3.7 inches}{175 km}×distance in reality= 5.7 inches

distance in reality= \frac{5.7 inches}{\frac{3.7 inches}{175 km}}

<u><em>distance in reality= 269.59 km</em></u>

In summary, an actual distance of 269.59 km represent a scale distance of 5.7 inches .

Learn more about map and scale:

brainly.com/question/24693076

brainly.com/question/13150795

brainly.com/question/27928319

#SPJ1

8 0
1 year ago
Find the surface area of the given prism​
Wewaii [24]

Answer:

Hello! answer: 432

Step-by-step explanation:

12 × 8 = 96

12 × 8 = 96

12 × 6 = 72

12 × 6 = 72

8 × 6 = 48

8 × 6 = 48

Then you add them all up so...

96 + 96 + 72 + 72 + 48 + 48 = 432 therefore the surface area is 432 hope that helps!

3 0
3 years ago
Is 2750 a reasonable answer for 917 times 33
hodyreva [135]
No because 917 times 33 is 30261
6 0
3 years ago
Please help: 3x+10=-5. What is x?
Rudiy27

Answer:

-5

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
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