Answer:
3,4,55 by-step explanation:
Answer:
for Mr farley I got 70 and for Mr samuels I got also 70 and there is no difference because they both have the same mean I hope I helped
There is a special kind of substitution which some books call it by comparison.
When the two equations are both
y=some function of x
y=some other function of x, then
we can substitute the second equation into the first giving
some function of x = some other function of x and start solving.
For example,
<span>y = –2x + 8
y = x – 1
substitute second into first
x-1=-2x+8
isolate x on left,
3x=9
x=3
second step is to substitute x=3 into second equation to get
y=x-1=3-1=2
Therefore the solution is (3,2)</span>
Answer:
Requested number is 36
Step-by-step explanation:
The first equation is as given t + u = 9
The second equation is t = (1/2)u => u = 2t
When we replace this in first equation we get:
t + 2t = 9 => 3t = 9 => t = 9/3 = 3
When we replace again in the
u = 2 t = 2 · 3 = 6
The requested number is 36
God with you!!!