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prisoha [69]
3 years ago
6

a system of equations is shown below: y=3x-7 and y=2x+7. what is the solution to the system of equations?

Mathematics
1 answer:
castortr0y [4]3 years ago
7 0
A system of equations means that both equations need to be true in the same time.
Since y is equal with 3x-7 and 2x+7 then those must be equal with eachother.
3x-7=2x+7
3x-2x=7+7
X=14
Now that we know x use any given equation of y and substitute x with 14
Y=3•14-7=35
Solution: x=14, y=35
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Rate of change of y respect to x as y=4-5/8x
KiRa [710]
Given a funtion in slope-intercept form:
y=mx+b
m=slope or rate of change.
b=y-intercept.


In tyis funtion:
y=4-5/8 x
y=-5/8 x+4

m=is the number beside "x"=-5/8

Therefore:
the rate of change of y respect to x will be -5/8.
4 0
3 years ago
What is the solution to the system of equations represented by the two equations?
FinnZ [79.3K]
Make the two equations equal together and solve for x
(x/3) = -2x+7 
multiple both sides by 3
x=-6x+21
solve for x
7x=21
x=3.
now plug in 3 into one of the equation to find your y value. 
y=-2(3)+7
y=1
write your answer as a coordinate; (3,1)
4 0
3 years ago
WILL MARK BRAINLIEST
UkoKoshka [18]

Answer:

The relationship is proportional ✧

5 0
3 years ago
The sum of Cathy's and Tony's ages is 65. Eight years ago, Cathy's age was 2/5 of Tony's age. How old are they now?
Viktor [21]
Let
x------> Cathy's<span> ages
</span>y------> Tony's ages

we know that
x+y=65-----> x=65-y-----> equation 1
y-8=(2/5)*(x-8)-----> equation 2

substitute equation 1 in equation 2
y-8=(2/5)*(65-y-8)---> y-8=22.8-0.4y----> y+0.4y=22.8+8
1.4y=30.8-----> y=22
x=65-y-----> x=65-22----> x=43

the answer is
Cathy's ages is 43 years 
Tony's ages is 22 years

7 0
3 years ago
Where is the center of the largest circle that you could draw inside a given triangle? . A.the point of concurrency of the media
juin [17]

The <em><u>correct answer</u></em> is:

C.the point of concurrency of the angle bisectors of the triangle

Explanation:

The largest circle that can be drawn inside a triangle is called an inscribed circle.  The center of this circle is called the incenter.

The incenter is formed by the intersection of the angle bisectors of all 3 angles in the triangle.

5 0
3 years ago
Read 2 more answers
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