So this is the answer 4.595714285714286 and you want you round it up to 1 d.p which is 4.6
Answer:
1:4
Step-by-step explanation:
1 would be the teachers
times 4 would be the students
By solving the equations x+2y=5, 4x-12y=-20 through elimination or substitution method we will get the value of x=1 and y=2.
Given two equations x+2y=5 and 4x-12y=-20.
We are required to solve the equations through elimination and substitution method.
Firstly we will solve the equations through elimination method.
x+2y=5-------------1
4x-12y=-20--------2
Multiply the equation 1 by 4 and then subtract the equation 2 from equation 1.
4x+8y-4x+12y=20+20
20y=40
y=2
Use the value of y in 1
x=5-2*2
x=5-4
x=1
From substitution method.
First find the value of x from first equation in terms of y.
x=5-2y-----4
Now put this value in second equation to get the value of y.
4(5-2y)-12y=-20
20-8y-12y=-20
20-20y=-20
-20y=-40
y=2
Put the value of y in equation 4.
x=5-2y
x=5-2*2
x=5-4
x=1
Hence by solving the equations x+2y=5, 4x-12y=-20 through elimination or substitution method we will get the value of x=1 and y=2.
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Answer:
65 feet
Step-by-step explanation:
That's what I think, I really don't know so don't count on it.
Answer:
7
Step-by-step explanation:
n= 4, a= -5, d = -1-(-5)= -1+5 = 4
Tn = a + (n-1)d
Tn = -5 + (4-1)4 = -5 + (3)4 = -5+12 = 7
