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Troyanec [42]
3 years ago
10

the sum of three numbers is 2100. the first number x is equal to the sum of the other two (y and z) which are equal to each othe

r. what are the three numbers x,y and z
Mathematics
1 answer:
max2010maxim [7]3 years ago
7 0
We will have a system of equations, and we are going to solve it by using substitution.
Let's make the equations.
x+y+z=2100
z+y=x
Since y and z are equal, I think it is easier for us to have them as one variable for now. Let the value of z and y be a.
These are the equations now.
x+2a=2100
2a=x
Since the second equation is giving the value of x, let it replace the value of x also in the first equation.
2a+2a=2100
4a=2100
2100÷4= 525
so, x and y equal 525. Let's put this in our original equation.
x+525+525=2100
x+ 1,050= 2,100
x= 1,050
So, x=1,050, y= 525 =z.

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Complete the square for the equation.<br> 14. x2 + 4x + 5 = 0
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Answer:

(x+2)^2=-1

Step-by-step explanation:

Yall have a great day!!!!!! Don't Forget to Rate my answer

8 0
3 years ago
Mr grain left for work at 7:15 am. twenty five mintutes later he aririved at his work. what time did mr giarmo arrive at his
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5 0
3 years ago
Please help me with this
mash [69]

Answer:

The correct answer is first option

24

Step-by-step explanation:

From the figure we get, mAXM = 72° and  m<AMR = 38°

Also it is given that, all triangles are isosceles triangles and

m<FXA = 96°

<u>To find the measure of <FXM</u>

From the figure we get,

m<FXA =  m<AXM + m<FXM

m<FXM = m<FXA - m<AXM

 = 96 - 72

 = 24

Therefore the  correct answer is first option

24

4 0
3 years ago
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