The slope intercept form is written like this:-
y = mx + b
'M' is the slope
'b' is the y intercept
Let a, b be two odd integers. Then both can be written as
a=2k-1, k is an integer
b=2m-1, m is an integer
So,
a-b=2k-1-(2m-1)=2k-2m-2=2(k-m-1)
Since, k and m and 1 are all integers, then (k-m-1) is also an integer. Hence, 2(k-m-1) is an even integer.
Thus, a-b is even.
Answer:
x>−178/7
Step-by-step explanation:
I'm assuming you wanted to solve for the inequality of x, if so this is the answer.
x - y = - 11 .............( 1 )
y + 7 = - 2x ...............( 2 )
from equation ( 1 )
x - y = - 11
x = -11 + y ...........( 3)
putting x in equation ( 2 )
y + 7 = - 2 x
y + 7 = -2 ( -11 + y ) y + 7 = 22 - 2 y y + 2 y =22 - 7
3 y = 15 y = 15 / 3
putting value of y in equation 3
x = -11+ ( 13 /5 ) x = -33 /3 + 15 / 3 ( l.c.m)
x = -17 / 5
check
x = -11 + y
- 17 / 5 = -11 + 13 / 5
-17 /5 = -17 / 5
Answer:
The price of fertilizer is $27.5 and potting soil is $5
Step-by-step explanation:
I think that you are asking for the price of each bag of fertilizer and potting soil. And here is my answer:
Given the system of linear:
3s + 4f = 125 <=> f = 31.25 -3/4s (1)
4s + 2f = 75 <=> f = 37.5 -2s (2)
Take (1) -(2) we have:
f -f = 31.25 -3/4s - (37.5 -2s)
<=> 0 = -6.25 + 1.25s
<=> 1.25s = 6.25
<=> s = 5
=> f = 37.5 -2(5) = 27.5
So the price of fertilizer is $27.5 and potting soil is $5
