Step-by-step explanation:
Answer:
-x+4
Step-by-step explanation:
x-2y
y= x-2
x-2(x-2)
x-2x+4
-x+4
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<h3>I'm solving it using substitution method:-</h3>
<h3>7x+2y=3 {given}</h3>
<h3>=>7x=3-2y</h3>
<h3>=>x=(3-2y)/7-------(1)</h3>
<h3>x-3y=30 {given}</h3>
<h3>=>x=30+3y</h3>
<h3>=>(3-2y)/7=30+3y {putting the value of x from eqn 1}</h3>
<h3>=>3-2y=210+21y</h3>
<h3>=>3-210=21y+2y</h3>
<h3>=>-207=23y</h3>
<h3>=>y= -207/23= -9</h3>
<h3>putting the value of y on eqn(1):-</h3>
<h3>x=(3-2y)/7</h3>
<h3>x=>(3-2(-9))/7=(3+18)/7=21/7=3</h3>
<h2>Hence, x=3, y= -9</h2>
✌️✌️❤️❤️
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Answer:
The maximum distance to the nearest kilometer between Westford and Centerville is 111.43 km.
Step-by-step explanation:
Local train stats:
Rate = 60 km/h
Distance = x km
Time = x/60 hours
Express train stats:
Rate = 80 km/h
Distance = 
km
Time = 
hours
Now we will equate both the times.
x = 83.57 km
km
Hence, the maximum distance to the nearest kilometer between Westford and Centerville is 111.43 km.
Answer:
√136 units
Step-by-step explanation:
We are given that;
- The provided triangle is a right triangle.
- The measure of the legs are 6 and 10 units.
- The hypotenuse of the right triangle is x units.
Since the provided triangle is a right triangle, we can use pythogoras theorem to determine the missing side length of the triangle.
<h3>What is the pythogoras theorem and it's formula?</h3>
Pythogoras theorem is a formula that is used to determine the missing side length of a right triangle, with the following given;
- Two side lengths (Legs)
- A hypotenuse (Longest side)
Pythogoras theorem is denoted as;
Where, "c" is the hypotenuse; "b" and "a" are the legs.
When we substitute the measure of the two legs and the hypotenuse of the triangle, we get;
Now, let's simplify the equation to determine the value of "x".
- ⇒ (x)² = 100 + 36 [Evaluating the squares]
- ⇒ (x)² = 136 [Simplifying the right-hand-side]
- ⇒ √(x)² = √136 [Taking square root both sides]
- ⇒ x = √136 ≈ 11.66 units (2 d.p) [Taking square root both sides]
The measure of the missing side is √136 units.
Learn more aobut pythogoras theorem: brainly.com/question/14056085
